When searching for the best 4-bay NAS, the decision often hinges on balancing performance, ease of use, and price. The Synology DiskStation DS423 stands out for its user-friendly interface and reliable software, making it ideal for most users. For those seeking high performance, the Ugreen NAS DXP4800 Plus offers robust hardware with 10GbE support. Meanwhile, the QNAP TR-004 provides a flexible, hardware RAID solution for advanced users. The main tradeoffs involve choosing between simplicity, raw power, and expandability. Continue reading for a detailed breakdown of these options to match your specific needs.
Key Takeaways
- Performance varies significantly depending on CPU and RAM; higher specs benefit media editing and virtualization.
- Ease of setup and software support heavily influence user experience, favoring brands like Synology and Asustor.
- Most top picks support high-speed Ethernet, but actual transfer speeds depend on network infrastructure.
- Price often correlates with hardware features; premium models include more RAM, faster CPUs, and better expandability.
- Many models offer diskless configurations, but choosing pre-configured drives can simplify setup for beginners.
| AOOSTAR WTR PRO AMD Ryzen 7 5825U Mini PC, 4 Bay NAS, No RAM/SSD, 4K HDMI, Dual M.2 NVMe, SATA Storage up to 88TB | ![]() | Best Performance for Power Users | Processor: AMD Ryzen 7 5825U, 8 cores, 16 threads | Graphics: Radeon Vega Graphics, 2000 MHz | Memory: Supports up to 64GB DDR4 3200MHz RAM | VIEW LATEST PRICE | See Our Full Breakdown |
| Asustor Drivestor 4 Pro Gen2 AS3304T v2 4-Bay NAS | ![]() | Best for Simple, Reliable NAS Storage | Processor: Realtek RTD1619B 1.7GHz quad-core | RAM: 2GB DDR4 | Ethernet: 2.5GbE port | VIEW LATEST PRICE | See Our Full Breakdown |
| UGREEN NASync DXP4800 Plus 4-Bay Desktop NAS with Intel Pentium Gold 8505, 8GB DDR5 RAM, 128GB SSD, 10GbE, 2.5GbE, M.2 NVMe Slots, 4K HDMI, Diskless | ![]() | Best for Small Office Power and Speed | Processor: Intel Pentium Gold 8505 5-Core | RAM: 8GB DDR5 | Network Ports: 1 x 10GbE, 1 x 2.5GbE | VIEW LATEST PRICE | See Our Full Breakdown |
| UGREEN NAS DH2300 2-Bay Desktop NAS – Supports 64TB Capacity, Remote Access, AI Photo Album, 4GB RAM, 1GbE, 4K HDMI, Diskless | ![]() | Best for Beginners and Personal Storage | Capacity: Supports up to 64TB (diskless) | RAM: 4GB LPDDR4X | Network: 1GbE Ethernet | VIEW LATEST PRICE | See Our Full Breakdown |
| Aluminum 4 Bay Hard Drive Enclosure with Cooling Fan for 2.5“/3.5″ SATA HDD/SSD with USB A/C 3.0, Support Hot Swappable, Tool-Free HDD Enclosure, DAS(NO RAID/NAS) | ![]() | Best External Enclosure for Flexibility and Cooling | Capacity: Supports up to 80TB | Material: Aluminum-Alloy | Connection: USB A/C 3.0 | VIEW LATEST PRICE | See Our Full Breakdown |
| TERRAMASTER F4-425 Plus NAS Storage | ![]() | Best Overall for High-Performance Demanding Users | Processor: Intel N150 Quad-Core up to 3.6GHz | Memory: 16GB DDR5 | Number of Bays: 4 | VIEW LATEST PRICE | See Our Full Breakdown |
| UGREEN NAS DXP2800 2-Bay Desktop All-Round NAS | ![]() | Best Value for Small Teams and Enthusiasts | Processor: Intel N100 Quad-core | RAM: 8GB DDR5 | Number of Bays: 2 | VIEW LATEST PRICE | See Our Full Breakdown |
| TERRAMASTER D4-320 External Hard Drive Enclosure | ![]() | Best External Storage Expansion Option | Number of Bays: 4 | Interface: USB 3.2 Gen2, Type-C | Data Transfer Speed: up to 10Gbps | VIEW LATEST PRICE | See Our Full Breakdown |
| Asustor Lockerstor 4 Gen2+ AS6704T v2 | ![]() | Best for Versatile, High-Speed Network Storage | Processor: Intel Celeron N5105, 2.0GHz quad-core | RAM: 4GB DDR4 | Number of Bays: 4 | VIEW LATEST PRICE | See Our Full Breakdown |
| Synology 4-Bay DiskStation DS423 | ![]() | Best for Secure Private Cloud & Data Protection | Number of Bays: 4 | Diskless: Yes | Warranty: 2 years | VIEW LATEST PRICE | See Our Full Breakdown |
| Synology 4-Bay DiskStation DS425+ (Diskless) | ![]() | Best Overall for Reliable Performance and Versatility | Drive Bays: 4 | Maximum Storage Capacity: 80 TB | Sequential Read/Write Throughput: 278/281 MB/s | VIEW LATEST PRICE | See Our Full Breakdown |
| UGREEN NASync DH4300 Plus 4-Bay Desktop NAS, Support Capacity 128TB (Diskless), Remote Access, AI Photo Album, 8GB RAM, 2.5GbE, 4K HDMI | ![]() | Best for Media Enthusiasts and Home Users | Support Capacity: 128TB (diskless) | RAM: 8GB LPDDR4X | Network: 2.5GbE | VIEW LATEST PRICE | See Our Full Breakdown |
| Synology DiskStation DS925+ (Diskless) 4-Bay NAS | ![]() | Best for Scalability and Advanced Users | Supports Drives: Up to 9 with expansion | Network Ports: Dual 2.5GbE | Warranty: 3 years | VIEW LATEST PRICE | See Our Full Breakdown |
| QNAP TR-004 4-Bay USB Type-C Direct Attached Storage (DAS) with Hardware RAID, Diskless | ![]() | Best for External Storage and RAID Flexibility | Number of Bays: 4 | Drive Interface: SATA 3Gb/s | Connectivity: USB Type-C | VIEW LATEST PRICE | See Our Full Breakdown |
| UGREEN NAS DXP4800 Pro 4-Bay Desktop NAS with Intel Core i3-1315U, 8GB DDR5, 128GB SSD, 10GbE & 2.5GbE, 4K HDMI, Diskless | ![]() | Best for Power Users and Creative Workflows | Processor: Intel Core i3-1315U 6-Core | RAM: 8GB DDR5 (expandable to 96GB) | Storage Support: Supports up to 144TB with HDDs and M.2 SSDs | VIEW LATEST PRICE | See Our Full Breakdown |
More Details on Our Top Picks
AOOSTAR WTR PRO AMD Ryzen 7 5825U Mini PC, 4 Bay NAS, No RAM/SSD, 4K HDMI, Dual M.2 NVMe, SATA Storage up to 88TB
The AOOSTAR WTR PRO stands out for its high-end AMD Ryzen 7 processor, making it ideal for demanding multitasking, media editing, and even light gaming. Unlike most NAS options, like the Asustor Drivestor 4 Pro, which focus on simple data storage and media streaming, this mini PC offers desktop-like power, supporting up to three 4K displays and extensive expandability. The main tradeoff is its size and complexity—it’s bulkier and requires more technical setup since it doesn’t include RAM or SSDs. Still, for users who need a versatile, powerful device that doubles as a mini workstation or media hub, this makes a compelling choice. It’s best suited for tech-savvy users needing both NAS and high-performance computing in one.
Pros:- Powerful AMD Ryzen 7 processor handles demanding multitasking
- Supports three 4K displays for extensive multitasking
- Expandable with four SATA bays and two M.2 NVMe slots
- Quiet operation with efficient cooling
Cons:- No included RAM or SSD, additional purchase needed
- Relatively large and less portable for a mini PC
- Limited to Windows 11 Pro—may restrict some users
Best for: Tech-savvy small business owners or power users needing flexible, high-performance storage and multitasking capabilities
Not ideal for: Beginners or users looking for a simple, plug-and-play NAS solution—this model requires additional components and setup
- Processor:AMD Ryzen 7 5825U, 8 cores, 16 threads
- Graphics:Radeon Vega Graphics, 2000 MHz
- Memory:Supports up to 64GB DDR4 3200MHz RAM
- Storage:Expandable up to 4 x 22TB SATA drives and 2 M.2 NVMe
- Display Outputs:HDMI 2.1, DisplayPort 1.4, USB-C
- Power Consumption:20 Watts
Bottom line: This pick is best for experienced users who need a high-performance, versatile device that can serve as both a NAS and a mini PC.
Asustor Drivestor 4 Pro Gen2 AS3304T v2 4-Bay NAS
The Asustor Drivestor 4 Pro Gen2 offers a solid balance of performance and ease of use, making it a strong candidate for home media and backup tasks. Its quad-core Realtek RTD1619B processor and 2GB DDR4 RAM ensure smooth operation for typical NAS functions, particularly when compared to the more powerful but more complex AOOSTAR WTR PRO. The device supports 4K transcoding and snapshots, which are essential features for media users who want reliable streaming and data protection. However, it is diskless out of the box, requiring users to purchase drives separately, and its limited RAM may hinder intensive multitasking or virtualization. This makes it well-suited for users who prioritize straightforward storage and media serving without needing high-end processing power.
Pros:- Quad-core processor provides reliable performance
- Supports 4K transcoding for media streaming
- Easy, tool-free drive installation
Cons:- Requires separate purchase of drives—diskless by default
- Limited RAM restricts multitasking
- No included drives, additional cost
Best for: Home users or small offices seeking hassle-free, reliable storage with media transcoding capabilities
Not ideal for: Power users or those needing virtual machine support—its limited RAM and processing power may fall short for intensive tasks
- Processor:Realtek RTD1619B 1.7GHz quad-core
- RAM:2GB DDR4
- Ethernet:2.5GbE port
- Number of Bays:4
- Features:Supports 4K transcoding, snapshots, tool-free install
- Maximum Storage:Dependent on drives
Bottom line: This NAS is ideal for users wanting dependable, straightforward storage with media features, but not for heavy multitasking or virtualization.
UGREEN NASync DXP4800 Plus 4-Bay Desktop NAS with Intel Pentium Gold 8505, 8GB DDR5 RAM, 128GB SSD, 10GbE, 2.5GbE, M.2 NVMe Slots, 4K HDMI, Diskless
The UGREEN NASync DXP4800 Plus targets small office environments with its robust Intel Pentium Gold processor, 8GB DDR5 RAM, and 10GbE connectivity. Compared to the AOOSTAR WTR PRO, which offers high-end computing but at a higher complexity, this model emphasizes network speed and centralized data management, making file sharing and remote access more efficient. Its included 128GB SSD accelerates system responsiveness, and the support for M.2 NVMe slots offers future storage expansion. The main tradeoff is its diskless design—users must purchase drives separately—and it may be overkill for purely personal use. It makes the most sense for small teams needing fast, reliable storage with enterprise-like features.
Pros:- Fast 10GbE network connectivity accelerates data transfer
- Powerful Intel Pentium Gold processor handles multitasking
- Includes 128GB SSD for quick system responsiveness
- Supports M.2 NVMe slots for future upgrades
Cons:- Requires separate purchase of drives—diskless at purchase
- More complex setup process
- Higher price point compared to basic NAS solutions
Best for: Small business users or teams needing high-speed network access and centralized storage
Not ideal for: Home users or those seeking a plug-and-play, budget-friendly NAS—its setup complexity and higher cost may be excessive
- Processor:Intel Pentium Gold 8505 5-Core
- RAM:8GB DDR5
- Network Ports:1 x 10GbE, 1 x 2.5GbE
- Storage:Supports up to 144TB with drives
- Video Output:4K HDMI
- Form Factor:Desktop
Bottom line: Ideal for small offices needing quick, reliable data access and expansion options, but less suitable for casual or personal use.
UGREEN NAS DH2300 2-Bay Desktop NAS – Supports 64TB Capacity, Remote Access, AI Photo Album, 4GB RAM, 1GbE, 4K HDMI, Diskless
The UGREEN NAS DH2300 targets entry-level users and beginners with its straightforward design and manageable capacity. Its 4GB RAM and 1GbE Ethernet make it suitable for simple backups, media streaming, and photo organization, especially given its AI-powered features. Compared to larger, more complex NAS devices like the AOOSTAR WTR PRO, it offers much easier setup and lower cost, but sacrifices expandability and performance. The diskless configuration means additional drive purchases are necessary, which can complicate initial setup for less experienced users. This makes it a practical choice for personal use or small households that want reliable storage without fuss.
Pros:- Easy setup and user-friendly interface
- Supports large storage capacity up to 64TB
- AI features for automatic photo tagging and organization
- Affordable and suitable for beginners
Cons:- Requires separate purchase of drives
- Limited performance for heavy multitasking or server functions
- Wi-Fi functionality requires external adapter
Best for: Beginners or personal users seeking easy, reliable storage and media features
Not ideal for: Power users or those needing virtualization, high-speed data transfer, or extensive expandability—its limited performance and capacity restrict advanced use
- Capacity:Supports up to 64TB (diskless)
- RAM:4GB LPDDR4X
- Network:1GbE Ethernet
- Video Output:4K HDMI
- Compatibility:Supports Western Digital, Seagate, Toshiba drives
- Features:AI photo album, remote access, RAID modes
Bottom line: This NAS is best for newcomers or personal users who want straightforward, reliable storage with some media features, but not for advanced or enterprise needs.
Aluminum 4 Bay Hard Drive Enclosure with Cooling Fan for 2.5“/3.5″ SATA HDD/SSD with USB A/C 3.0, Support Hot Swappable, Tool-Free HDD Enclosure, DAS(NO RAID/NAS)
The Aluminum 4 Bay Hard Drive Enclosure offers a different approach, focusing on external storage rather than network-based NAS functions. Its rugged aluminum build and integrated cooling fan help maintain drive health during heavy use, making it suitable for those needing portable, high-capacity external storage. Compared to the embedded NAS options like the UGREEN NAS DH2300, this enclosure lacks network capabilities but excels in direct, high-speed data transfer via USB 3.0. The tradeoff is that it does not support RAID configurations or network access, limiting its role to simple external storage. It’s an ideal choice for users who prefer a straightforward, durable external drive solution over a dedicated NAS device.
Pros:- Robust aluminum construction enhances durability
- Supports hot-swappable drives for easy maintenance
- Built-in cooling fan prevents overheating during heavy use
- Supports up to 80TB total capacity
Cons:- No network or RAID support—limited functionality
- Requires external connection to a computer or host device
- No included drives—must buy separately
Best for: Individuals or businesses needing a reliable, portable external storage solution with excellent cooling
Not ideal for: Users seeking network-attached storage or multi-user access—this is purely external, not networked
- Capacity:Supports up to 80TB
- Material:Aluminum-Alloy
- Connection:USB A/C 3.0
- Supports:2.5”/3.5” SATA HDD/SSD
- Features:Hot swappable, cooling fan
- Power:DC 12V adapter
Bottom line: This enclosure is perfect for users needing portable, high-capacity external storage with excellent cooling but not for those seeking network features.
TERRAMASTER F4-425 Plus NAS Storage
The TERRAMASTER F4-425 Plus stands out for its powerful hardware, featuring an Intel N150 quad-core processor and 16GB DDR5 RAM, making it ideal for intensive tasks like media editing or small business workloads. Compared to the Asustor Lockerstor 4 Gen2+, it offers superior processing power and memory, but at the cost of increased complexity in setup and higher price. Its triple M.2 slots provide flexible SSD caching options, boosting performance, while dual 5GbE ports enable fast, aggregated network speeds. However, it’s a diskless model requiring users to purchase drives separately, and its advanced features may be overwhelming for casual users. The aluminum chassis and hot-swappable trays add durability and convenience. This NAS is best suited for tech-savvy users who need high throughput and expandability.
Pros:- High-performance quad-core CPU and 16GB DDR5 RAM
- Flexible storage with 3 M.2 slots and large capacity potential
- Fast data transfer with dual 5GbE ports and link aggregation
- Durable aluminum chassis with hot-swappable drives
Cons:- Requires technical knowledge for initial setup and configuration
- No included drives, with additional cost for HDDs and SSDs
- Potential overkill for basic home storage needs
Best for: Small businesses or creative teams needing high-performance, expandable storage.
Not ideal for: Home users seeking simple, plug-and-play solutions without technical setup.
- Processor:Intel N150 Quad-Core up to 3.6GHz
- Memory:16GB DDR5
- Number of Bays:4
- Maximum Storage Capacity:144TB
- Network Interfaces:2 x 5GbE LAN ports
- M.2 Slots:3
Bottom line: This NAS is ideal for demanding users who prioritize performance, expandability, and advanced features.
UGREEN NAS DXP2800 2-Bay Desktop All-Round NAS
The UGREEN NAS DXP2800 offers a compelling balance of performance and affordability, equipped with an Intel N100 quad-core processor and 8GB DDR5 RAM, making it suitable for small offices or enthusiastic home users. Unlike the TERRAMASTER F4-425 Plus, it has fewer bays but is more straightforward to set up and manage, with the added convenience of 4K HDMI output for media streaming. Its two M.2 NVMe slots allow for flexible storage or caching options, and 2.5GbE connectivity ensures faster network access than traditional Ethernet. The unit is diskless, requiring users to buy drives separately, and its limited bays may restrict long-term scalability. Nevertheless, its user-friendly interface and multimedia capabilities make it a versatile choice. This NAS makes the most sense for users who want reliable performance in a compact, easy-to-configure package.
Pros:- Solid quad-core processor and 8GB DDR5 RAM
- Supports up to 76TB with separate drives
- 4K HDMI for multimedia use
- Easy setup with multi-device access
Cons:- Hard drives are sold separately
- Limited to 2 drive bays, restricting extensive scalability
- Requires some technical knowledge for initial setup
Best for: Small business owners or home users seeking a capable, budget-friendly NAS with multimedia features.
Not ideal for: Power users needing high expansion or enterprise-level features.
- Processor:Intel N100 Quad-core
- RAM:8GB DDR5
- Number of Bays:2
- Maximum Storage Capacity:76TB
- Network:2.5GbE
- HDMI:Yes
Bottom line: This NAS is perfect for users who want a capable, easy-to-use device with multimedia support and moderate storage needs.
TERRAMASTER D4-320 External Hard Drive Enclosure
The TERRAMASTER D4-320 excels as an external 4-bay enclosure supporting high-speed data transfer via USB 3.2 Gen2, delivering up to 10Gbps. Compared with NAS solutions, it offers straightforward, plug-and-play external storage without network complexity. Its tool-free, hot-swappable design simplifies drive installation, and its quiet operation and efficient heat management make it suitable for continuous use in home or office environments. However, it does not support RAID configurations, limiting redundancy options, and it’s strictly external, so it lacks the network features of a true NAS. Users need to supply their own drives, which might add to the total cost. This enclosure is ideal for expanding existing storage or creating a fast backup solution. It’s best for those who need quick, reliable external storage but don’t require network sharing or RAID redundancy.
Pros:- High-speed transfer up to 10Gbps
- Hot-swappable, tool-free drive installation
- Quiet operation and good heat dissipation
- Compatible with multiple OS
Cons:- No RAID support or redundancy options
- External only, no network capabilities
- Requires separate drives for storage capacity
Best for: Pro users or small offices needing fast, external storage expansion.
Not ideal for: Users looking for a network-attached solution with RAID or remote access features.
- Number of Bays:4
- Interface:USB 3.2 Gen2, Type-C
- Data Transfer Speed:up to 10Gbps
- Supported Drive Types:3.5-inch SATA HDD, 2.5-inch SATA HDD/SSD
- Maximum Drive Capacity:30TB per drive
- Total Capacity:up to 120TB
Bottom line: This external enclosure is perfect for quick, high-speed storage expansion where network features aren’t needed.
Asustor Lockerstor 4 Gen2+ AS6704T v2
The Asustor Lockerstor 4 Gen2+ emphasizes flexibility with its quad-core Intel Celeron N5105 processor and four M.2 SSD slots, supporting multiple SSD configurations for caching or storage. It features dual 5GbE ports for high-speed networking, making it suitable for demanding tasks like real-time media editing or surveillance. Compared to the Synology DS423, it provides more robust SSD options and remote management features via Wake on LAN/WAN. Its 4GB DDR4 RAM is adequate but limits heavy multitasking. Being diskless, it requires users to purchase drives separately, and the relatively modest RAM may restrict very intensive applications. Still, its robust hardware makes it a solid choice for performance-focused users. This NAS is best for those wanting high-speed network connectivity and flexible SSD setups.
Pros:- Powerful quad-core processor and 4GB DDR4 RAM
- Supports multiple SSD configurations with 4 M.2 slots
- Dual 5GbE ports for high-speed networking
- Remote management features like Wake on LAN/WAN
Cons:- Disks sold separately, adding to overall cost
- Limited RAM for very heavy multitasking
- More complex setup compared to basic NAS units
Best for: Enthusiast or professional users requiring flexible SSD caching and high-speed network access.
Not ideal for: Casual home users or those with minimal storage needs, due to complexity and cost.
- Processor:Intel Celeron N5105, 2.0GHz quad-core
- RAM:4GB DDR4
- Number of Bays:4
- SSD Slots:4 M.2 NVMe
- Ethernet Ports:2 x 5GbE
- Features:Supports Wake on LAN/WAN
Bottom line: This NAS suits power users seeking flexible SSD options and fast network connectivity for demanding workloads.
Synology 4-Bay DiskStation DS423
The Synology DS423 excels in data security, backup, and sharing, with its diskless design allowing users to choose their own drives. Its 2-year warranty and user-friendly interface make it accessible to less technical users. Compared to QNAP TR-004, it offers a more integrated software environment with Synology’s DSM OS, which simplifies configuration and management. While it doesn’t support direct media streaming or high-end SSD caching, its comprehensive backup and malware protection make it a reliable option for sensitive data. The need to purchase disks separately and the potential learning curve for setup are considerations. It’s ideal for users prioritizing data security over raw performance or multimedia features. This NAS is best suited for those focused on data integrity, privacy, and simple file sharing.
Pros:- Secure private cloud with comprehensive data protection
- Supports up to 30 IP cameras with license (sold separately)
- User-friendly DSM OS for easy management
- Flexible, diskless configuration for user-chosen drives
Cons:- Disks sold separately, increasing initial cost
- No built-in media streaming or caching features
- Setup may be complex for absolute beginners
Best for: Home or small office users prioritizing data security and easy management.
Not ideal for: Power users needing high-speed SSD caching or multimedia streaming capabilities.
- Number of Bays:4
- Diskless:Yes
- Warranty:2 years
- Supports IP Cameras:Up to 30 (license required)
Bottom line: This NAS is ideal for users seeking reliable, secure data storage with straightforward management and privacy features.
Synology 4-Bay DiskStation DS425+ (Diskless)
The Synology DS425+ stands out for its high-speed transfer rates and large maximum capacity, making it ideal for small businesses or advanced home users who need both robust data management and security. Compared to the QNAP TR-004, it offers more integrated features and a user-friendly interface, though it requires buyers to purchase drives separately, which can add to the initial cost. Its built-in management tools simplify security and backup tasks, but the setup process can be complex for newcomers. The 3-year warranty adds peace of mind for long-term use.
Pros:- High data transfer speeds of up to 278/281 MB/s
- Supports up to 80 TB of storage capacity
- Robust built-in security and management features
- 3-year warranty for long-term reliability
Cons:- Requires purchasing drives separately, increasing upfront cost
- No pre-installed drives, so setup is more involved
- Learning curve may be steep for new users
Best for: Small business owners or tech-savvy home users seeking reliable, scalable storage with comprehensive management tools
Not ideal for: Beginners or casual users who prefer a plug-and-play setup without extensive configuration
- Drive Bays:4
- Maximum Storage Capacity:80 TB
- Sequential Read/Write Throughput:278/281 MB/s
- Warranty:3 years
Bottom line: This pick makes the most sense for those who prioritize performance, expandability, and security in a NAS environment.
UGREEN NASync DH4300 Plus 4-Bay Desktop NAS, Support Capacity 128TB (Diskless), Remote Access, AI Photo Album, 8GB RAM, 2.5GbE, 4K HDMI
The UGREEN NASync DH4300 Plus offers a compelling combination of large storage capacity and multimedia features, making it perfect for families or media buffs who want easy access and AI-driven photo management. Unlike the Synology DS425+, it emphasizes media playback and remote access, with 4K HDMI output and AI photo recognition, but it lacks some enterprise-level security features. Its user-friendly interface and quick setup appeal to home users, although disks are not included, adding to the initial investment. The 8GB RAM ensures smooth multitasking for media and backup tasks.
Pros:- Supports up to 128TB of storage with disks
- 4K HDMI output for media playback
- AI photo album recognition and classification
- Easy setup and remote access from multiple devices
Cons:- Disks are sold separately, increasing overall cost
- Limited to personal/media use, not suitable for virtual machine hosting
- Initial setup requires some configuration
Best for: Home users or media collectors needing large storage and multimedia capabilities with simple setup
Not ideal for: Power users seeking advanced virtualization, or those needing enterprise-grade security
- Support Capacity:128TB (diskless)
- RAM:8GB LPDDR4X
- Network:2.5GbE
- Video Output:4K HDMI
Bottom line: This model is best suited for home media lovers who value multimedia features and large capacity over enterprise features.
Synology DiskStation DS925+ (Diskless) 4-Bay NAS
The Synology DS925+ provides a flexible upgrade path with support for up to nine drives, making it ideal for growing businesses or tech-savvy users who want to expand over time. Its dual 2.5GbE ports deliver fast network speeds comparable to the Ugreen NAS DXP4800 Pro, but with a focus on scalability and virtualization support. The setup involves more technical knowledge, especially with expansion units and network configuration, which might deter casual users. Despite its higher price, the added capacity and features justify the investment for demanding environments.
Pros:- Supports up to 9 drives with expansion units
- Dual 2.5GbE network ports for fast transfers
- Versatile for data sharing, backup, and virtualization
- 3-year warranty supports long-term planning
Cons:- Requires technical expertise for setup and management
- Higher initial cost due to advanced features
- No pre-installed drives included
Best for: Growing businesses or advanced home users seeking scalable storage solutions with virtualization support
Not ideal for: Basic users or those who prefer simple, all-in-one NAS devices without expansion capabilities
- Supports Drives:Up to 9 with expansion
- Network Ports:Dual 2.5GbE
- Warranty:3 years
- Dimensions:8.78 x 7.83 x 6.54 inches
Bottom line: This NAS is best for users who need scalable storage and are comfortable with complex setups and management.
QNAP TR-004 4-Bay USB Type-C Direct Attached Storage (DAS) with Hardware RAID, Diskless
The QNAP TR-004 excels as an external storage solution with hardware RAID support, making it ideal for users who need portable, high-security backup options. Compared with the Synology DS425+, it offers direct connectivity via USB-C, but is limited to external drives and cannot serve as a standalone NAS or be integrated into a network. Its lockable drive bays ensure physical security, yet it doesn’t support NAS features like network sharing or virtualization, restricting its role to backup or additional storage. Compatibility is limited to SATA 3Gb/s drives, which may affect transfer speeds.
Pros:- Supports multiple RAID configurations including RAID 0, 1, 5
- Lockable drive bays enhance physical security
- Compatible with Windows, macOS, Linux
Cons:- Not supported as a volume within NAS systems
- Limited to SATA 3Gb/s drives, affecting transfer speeds
- Cannot serve as a standalone network device
Best for: Power users needing portable, secure external storage with RAID options for backups
Not ideal for: Those looking for a standalone NAS or multimedia server, as it cannot operate within a network or run apps
- Number of Bays:4
- Drive Interface:SATA 3Gb/s
- Connectivity:USB Type-C
- Supported RAID:RAID 0, 1, 5, JBOD
Bottom line: Ideal for users who need portable, secure RAID external storage rather than full NAS functionality.
UGREEN NAS DXP4800 Pro 4-Bay Desktop NAS with Intel Core i3-1315U, 8GB DDR5, 128GB SSD, 10GbE & 2.5GbE, 4K HDMI, Diskless
The UGREEN NAS DXP4800 Pro offers desktop-class hardware with an Intel Core i3 processor, making it suitable for demanding workflows like virtualization, Docker containers, and AI photo management. Unlike the other options, it supports extensive storage expansion with HDDs and M.2 SSDs, plus 10GbE connectivity for ultra-fast transfers, ideal for creative professionals or small offices. The setup requires some technical skill, especially for configuring VMs or Docker, and its higher price tag reflects its advanced hardware. This NAS is overkill for basic storage needs but excels in high-performance environments.
Pros:- Powerful Intel Core i3 processor with up to 4.5GHz
- Supports extensive storage expansion (up to 144TB)
- 10GbE and 2.5GbE network ports for ultra-fast data transfer
- Supports virtualization, Docker, and AI photo management
Cons:- Likely expensive due to high-end hardware
- Requires technical expertise for setup and management
- Overkill for basic storage needs
Best for: Creative professionals, small offices, or power users needing virtualization, Docker, and AI features
Not ideal for: Casual users or those seeking simple, plug-and-play storage solutions
- Processor:Intel Core i3-1315U 6-Core
- RAM:8GB DDR5 (expandable to 96GB)
- Storage Support:Supports up to 144TB with HDDs and M.2 SSDs
- Network Ports:1x 10GbE, 1x 2.5GbE
- Additional Features:4K HDMI, RAID, Docker, VMs
Bottom line: This NAS is best suited for demanding workflows, virtualization, and high-performance needs where technical skill is available.

How We Picked
I evaluated each NAS based on core factors that matter to buyers: performance (CPU, RAM, network speeds), usability (software ecosystem, setup process), build quality, expandability, and value for money. I prioritized products with reliable hardware and well-supported firmware, ensuring they would meet typical use cases from media storage to small business applications. The ranking reflects a balance between high-end features and affordability, favoring models that deliver consistent, long-term performance without unnecessary complexity or cost.Factors to Consider When Choosing Best 4-bay Nas
Choosing the best 4-bay NAS involves several key considerations. While specs like CPU and RAM are important, broader factors such as ease of use, expandability, and software support can significantly impact your experience. Understanding these tradeoffs helps in selecting a device that not only fits your current needs but also scales for future growth.Performance and Hardware Specifications
Look for a NAS with a capable processor, ample RAM, and fast network interfaces to handle your workload. For media-heavy tasks or virtualization, prioritize models with higher-tier CPUs and at least 8GB of RAM. Keep in mind that more powerful hardware often comes with higher costs but can provide smoother operation over time, especially as data demands grow.
Ease of Use and Software Ecosystem
Intuitive setup and a robust operating system make a significant difference in daily use. Brands like Synology are renowned for their user-friendly interfaces and extensive app ecosystems, which simplify management and backups. Conversely, more tech-savvy users may prefer QNAP or Asustor for greater customization options, but this can come with a steeper learning curve.
Expandability and Future-Proofing
Consider how the NAS can grow with your needs. Some models support additional RAM, M.2 SSD caching, or even expansion units. If you anticipate increasing storage or performance demands, choosing a model with flexible ports and upgrade options can save money and hassle later.
Price and Overall Value
While higher-priced models often include superior hardware and features, assess whether you truly need those capabilities. For most home users and small businesses, mid-range models provide excellent value, balancing cost with performance. Be cautious of overpaying for features you won’t use, but also avoid cheaping out on essential hardware that could limit your experience.
Power Consumption and Noise Levels
For home environments, quieter and energy-efficient models prevent disruptions and reduce long-term costs. Check reviews for noise levels, especially if the NAS will sit in a living space or office. More powerful hardware tends to generate more heat and noise, so consider these factors if quiet operation is important.
Frequently Asked Questions
Can I upgrade the RAM or CPU in my 4-bay NAS later?
Upgrading RAM is common in most 4-bay NAS models, especially those with accessible memory modules. However, CPU upgrades are less typical and depend heavily on the device’s hardware design and manufacturer support. Generally, choosing a model with ample RAM and a capable CPU from the start ensures better longevity and performance, minimizing the need for upgrades.
Is it better to buy a diskless NAS or one with pre-installed drives?
A diskless NAS offers flexibility, allowing you to choose drives that suit your budget and performance needs. It’s ideal for advanced users who want to customize their setup. Conversely, pre-installed drives simplify initial setup and ensure compatibility, which can be advantageous for beginners or those who prefer a plug-and-play experience. Your choice depends on your technical confidence and specific storage requirements.
How important is network speed in choosing a NAS?
Network speed directly impacts data transfer rates and overall responsiveness, especially when multiple users access files simultaneously. For high-definition media streaming or backup of large files, a 10GbE connection can make a noticeable difference. However, if your network infrastructure doesn’t support these speeds, investing in high-speed Ethernet ports may not provide full benefits, so evaluate your current setup first.
Should I prioritize hardware specs or software features?
Both matter, but for most users, software support and ease of use are more critical. A powerful NAS with complicated setup procedures or poor app ecosystems can hinder productivity. Conversely, a well-supported device with moderate hardware can provide a smoother, more reliable experience. Assess your comfort level with technology and choose accordingly, ensuring the software ecosystem aligns with your needs.
What should I consider if I plan to expand my storage later?
If future expansion is on your mind, look for NAS models that support M.2 SSD caching, additional RAM, or external expansion units. Also, check if the device has multiple Ethernet ports for link aggregation or supports RAID configurations that can be expanded later. Planning ahead can help avoid costly replacements and ensure your storage infrastructure remains scalable.
Conclusion
For most users, the Synology DiskStation DS423 offers a balanced mix of ease of use, reliable software, and solid hardware, making it the best overall choice. The Ugreen NAS DXP4800 Plus stands out for power users needing high-speed networking and robust hardware. If budget is a priority, models like the UGREEN NAS DH2300 deliver good functionality at a lower cost. Beginners or those with simple storage needs will find the QNAP TR-004 or Aluminum Enclosure easier to set up. For high-performance, future-proof options, the UGREEN NAS DXP4800 Pro with its premium specs makes a compelling case. Tailor your choice to your specific needs and comfort level to ensure a satisfying purchase.














