6 Best QSFP28 Breakout Cables for 2026 (Top Picks)

When searching for a qsfp28 breakout cable, the goal is to find a reliable link that balances performance, compatibility, and affordability. The 10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-Meter stands out as the best overall due to its solid build and broad compatibility. For those prioritizing longer reach, the 400GBe to 4x100GBe QSFP28 Active DAC Breakout Cable, 5m offers extended length at a premium price. The Intellinet QSFP28 to 4x SFP28 100G Passive DAC is a strong choice for budget-conscious buyers. Continue reading for a detailed breakdown of these options and what to consider when selecting the right cable for your setup.

Key Takeaways

• The best cables balance compatibility with your hardware and length requirements without sacrificing signal quality.
• Active DAC cables tend to offer longer distances and more stability, but come at a higher cost than passive options.
• Build quality and connector reliability are critical for maintaining consistent high-speed connections over time.
• Shorter cables often are more affordable and easier to manage, but may limit your flexibility in rack setups.
• Price varies significantly based on length, features, and brand reputation; determine your needs before opting for premium options.

Our Top Qsfp28 Breakout Cable Picks

10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-Meter		Best Overall for Short-Distance Rack Connections	Type: Breakout DAC Copper Twinax Cable	Length: 2 meters	Compatibility: Juniper JNP-100G-4X25G-2M	VIEW ON AMAZON	See Our Full Breakdown
10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 1 Meter		Best for Cisco-Integrated Short Connections	Type: Breakout DAC Copper Twinax Cable	Length: 1 Meter (3.3 ft)	Compatibility: Cisco QSFP-4SFP25G-CU1M	VIEW ON AMAZON	See Our Full Breakdown
MikroTik QSFP28 Breakout Cable, 3m XQ+BC0003-XS+		Best for MikroTik Network Integration	Cable Length: 3 meters	Connectors: QSFP28 to 4x SFP28	Compatible Devices: CCR2216, CRS504	VIEW ON AMAZON	See Our Full Breakdown
10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-Meter		Best for Arista Short-Distance Connects	Type: Breakout DAC Copper Twinax Cable	Length: 2 meters	Compatibility: Arista CAB-Q-4S-100G-2M	VIEW ON AMAZON	See Our Full Breakdown
400GBe to 4x100GBe QSFP28 Active DAC Breakout Cable, 5m – Compatible with Dell EMC 470-AEDL C0TP5 RH2KV ACC-Q56DD-4QSFP28-100G-5M		Best for High-Density Data Centers	Compatibility: Dell EMC 470-AEDL	Part Number: 470-AEDL C0TP5 RH2KV	Connector Type: QSFP56-DD to 4x QSFP28	VIEW ON AMAZON	See Our Full Breakdown
Intellinet QSFP28 to 4x SFP28 100G Passive DAC Breakout Cable, 3 ft		Best Compact Passive DAC for Short-Distance Links	Length: 3 ft	Cable Type: Passive DAC	Connectors: QSFP28 to 4 x SFP28	VIEW ON AMAZON	See Our Full Breakdown

More Details on Our Top Picks

1. 10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-Meter

   

   Best Overall for Short-Distance Rack Connections

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   This 2-meter passive copper breakout cable offers a reliable, cost-effective solution for connecting a 100G QSFP28 port to four 25G SFP28 ports, especially in rack-to-rack setups. Its high compatibility with Juniper switches makes it a standout for users already invested in Juniper infrastructure. Compared with the longer 3-meter Intellinet option, its shorter length ensures minimal signal loss and easier management, though it sacrifices flexibility. The cable is tested for signal integrity, but being passive, it may experience slight signal degradation over longer runs. Its straightforward design keeps costs low, but it’s limited to short distances and specific switch models. This pick is best for data centers prioritizing reliability and affordability within confined spaces.

   Pros:

   • High compatibility with Juniper switches
   • Cost-effective for short-distance use
   • Individually tested for quality and reliability

   Cons:

   • Limited to very short link distances
   • Passive design may lead to signal loss over longer runs

   Best for: Data center operators with Juniper equipment needing short, reliable links

   Not ideal for: Organizations requiring longer cable runs or active signal boosting, as this is a passive cable with limited length

   • Type:Breakout DAC Copper Twinax Cable
   • Length:2 meters
   • Compatibility:Juniper JNP-100G-4X25G-2M
   • Data Rate:100G to 4x 25G
   • Gauge:30AWG
   Our verdict

   “This cable is ideal for short, reliable connections within Juniper-based environments where budget efficiency matters.”

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2. 10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 1 Meter

   

   Best for Cisco-Integrated Short Connections

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   This 1-meter passive copper cable provides a compact, cost-effective way to connect a 100G QSFP28 port to four 25G SFP28 ports, specifically tailored for Cisco environments. Its short length makes it suitable for tightly packed racks, with thorough testing to ensure signal integrity. Unlike the MikroTik 3-meter cable, its shorter reach reduces potential signal loss, but it limits flexibility in larger setups. Compatibility with Cisco switches and servers makes it a logical choice for Cisco-centric data centers, though its passive design may be less forgiving over slightly longer distances. The cable’s simplicity and testing quality make it a dependable option for quick, short links.

   Pros:

   • Compatible with Cisco switches and servers
   • Thoroughly tested for signal integrity
   • Cost-effective for very short connections

   Cons:

   • Limited to very short link distances
   • Passive cable, may have less flexibility

   Best for: Cisco network administrators needing short, reliable interconnections

   Not ideal for: Users with larger rack setups requiring more flexibility or longer cable runs, since this is limited to 1 meter

   • Type:Breakout DAC Copper Twinax Cable
   • Length:1 Meter (3.3 ft)
   • Compatibility:Cisco QSFP-4SFP25G-CU1M
   • Gauge:30 AWG
   • Number of Connectors:1 QSFP28, 4 SFP28
   Our verdict

   “This cable suits Cisco users seeking a proven, short-distance connection with minimal fuss.”

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3. MikroTik QSFP28 Breakout Cable, 3m XQ+BC0003-XS+

   

   Best for MikroTik Network Integration

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   The MikroTik XQ+BC0003-XS+ is a 3-meter QSFP28 to 4x SFP28 cable designed to streamline high-speed connections within MikroTik’s ecosystem. Its longer length provides more flexibility compared to shorter options, making it suitable for connecting multiple MikroTik CCR2216 or CRS504 devices. While the longer reach is beneficial, it may introduce slight signal attenuation compared to shorter cables like the 1-meter Cisco model. Its compatibility is limited to MikroTik devices, and it’s a bit more expensive, reflecting its specialized design. This cable makes connecting multiple MikroTik devices straightforward, but it’s less suited for environments with mixed equipment or where very short, high-reliability links are needed.

   Pros:

   • Supports 25 Gigabit data transfer
   • Enables high-speed connections for multiple devices
   • Longer length adds flexibility

   Cons:

   • Limited to MikroTik compatible hardware
   • Potentially more expensive than shorter, passive options

   Best for: MikroTik users needing flexible, high-speed device interconnections

   Not ideal for: Non-MikroTik environments or setups requiring very short, minimal-length cabling due to its 3-meter length and cost

   • Cable Length:3 meters
   • Connectors:QSFP28 to 4x SFP28
   • Compatible Devices:CCR2216, CRS504
   • Data Rate:25 Gigabit
   Our verdict

   “This cable is best for MikroTik environments seeking flexible, high-speed device integration over moderate distances.”

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4. 10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-Meter

   

   Best for Arista Short-Distance Connects

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   This 2-meter passive copper breakout cable is designed for Arista switches, offering a cost-effective option for short-distance rack interconnections. Its compatibility with Arista CAB-Q-4S-100G-2M ensures plug-and-play reliability, similar to the Cisco and Juniper options but tailored for Arista environments. The 2-meter length keeps signal quality high, though like other passive cables, it’s best suited for short runs without significant signal loss. Compared to the MikroTik 3-meter cable, this is shorter and more focused on high-quality, short links within data centers. Its tested performance guarantees dependable operation, but it lacks the flexibility needed for longer or more complex setups.

   Pros:

   • Compatible with Arista switches
   • Cost-effective for short-distance connections
   • Individually tested for signal quality

   Cons:

   • Limited to very short spans
   • Passive design may cause slight signal degradation over longer distances

   Best for: Arista network users needing dependable short-distance links

   Not ideal for: Larger or complex network layouts requiring longer or active cables, due to its fixed short length

   • Type:Breakout DAC Copper Twinax Cable
   • Length:2 meters
   • Compatibility:Arista CAB-Q-4S-100G-2M
   • Data Rate:100G to 4x 25G
   • Gauge:30AWG
   Our verdict

   “This cable suits Arista environments prioritizing reliable, short-range connectivity at a reasonable price.”

   → See it on Amazon →

5. 400GBe to 4x100GBe QSFP28 Active DAC Breakout Cable, 5m – Compatible with Dell EMC 470-AEDL C0TP5 RH2KV ACC-Q56DD-4QSFP28-100G-5M

   

   Best for High-Density Data Centers

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   This 5-meter active copper breakout cable converts 400GbE to four 100GbE QSFP28 links, ideal for large-scale data centers demanding high throughput. Its active design ensures better signal integrity over longer distances compared to passive options like the Arista or Cisco cables, making it suitable for complex, high-density deployments. Unlike shorter passive cables, this model maintains high performance at 5 meters, but it requires specific Dell EMC platforms and OS versions, limiting universal applicability. Its lightweight, flexible build simplifies integration in dense racks, although the higher cost and platform dependency are tradeoffs. It’s a clear choice for environments where longer reach and high-speed stability are paramount.

   Pros:

   • Supports 400GbE to 100GbE breakout
   • Reliable signal integrity over 5 meters
   • Lightweight and flexible for dense deployments

   Cons:

   • Limited to Dell EMC compatible platforms
   • Higher cost compared to passive cables

   Best for: Data centers using Dell EMC platforms needing reliable high-speed, longer-distance connectivity

   Not ideal for: Non-Dell EMC users or setups with minimal space constraints, as the cable’s platform-specific and somewhat pricey

   • Compatibility:Dell EMC 470-AEDL
   • Part Number:470-AEDL C0TP5 RH2KV
   • Connector Type:QSFP56-DD to 4x QSFP28
   • Cable Length:5 meters
   • Cable Type:Active Direct Attach Copper (DAC)
   Our verdict

   “This active cable is best for large data centers requiring stable, long-distance high-speed connections within a Dell environment.”

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6. Intellinet QSFP28 to 4x SFP28 100G Passive DAC Breakout Cable, 3 ft

   

   Best Compact Passive DAC for Short-Distance Links

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   This Intellinet QSFP28 breakout cable excels in delivering reliable, low-latency connections over a brief 3-foot span, making it ideal for densely packed data center racks where space is tight. Unlike the longer 10Gtek 2-meter cables, its shorter length minimizes cable clutter and signal loss, which is crucial for maintaining high performance in short-distance setups. The passive design means it consumes minimal power and generates less heat, but this also limits its use to indoor, short-range environments—making it less suitable for larger or more complex network architectures that need active components. Its compliance with MSA and IBTA standards ensures broad compatibility with existing QSFP28 and SFP28 ports, simplifying deployment without additional power supplies. However, the ultra-short length and passive nature could be restrictive for some setups requiring flexibility or active management. This pick makes the most sense for data centers prioritizing minimal latency and cable clutter for short runs, where budget and simplicity matter.

   Pros:

   • Supports high-speed 100G to 4x 25G connections with minimal latency
   • Low power consumption and heat generation due to passive design
   • Easy to install and hot-swappable, reducing downtime
   • Interoperable with standard QSFP28 and SFP28 ports

   Cons:

   • Limited to very short distances (only 3 feet), restricting flexibility
   • Passive design doesn’t support active signal boosting, unsuitable for longer runs
   • Compatibility limited to specific port types, reducing universal applicability

   Best for: Data center operators needing a compact, low-power solution for short-distance, high-speed interconnections within server racks

   Not ideal for: Large-scale deployments or environments requiring longer cable runs and active signal boosting, where a longer or active cable would be necessary

   • Length:3 ft
   • Cable Type:Passive DAC
   • Connectors:QSFP28 to 4 x SFP28
   • Compliance:MSA, IBTA
   • Wire Gauge:AWG 30
   • Outer Jacket:PVC
   • Operating Temperature:up to 70°C
   Our verdict

   “This cable is best suited for data centers with tight rack spaces needing quick, reliable short-range links, but less ideal for larger or flexible network layouts.”

   → See it on Amazon →

How We Picked

These products were evaluated based on their performance, build quality, compatibility, and value. I looked at the cable length options to match different deployment needs, ensuring each product is suitable for various rack and data center configurations. Ease of installation and connector robustness were key factors, along with user feedback on durability. The ranking reflects a balance between cost-effectiveness and high performance, prioritizing cables that meet industry standards for high-speed data transmission while offering reliable construction and broad compatibility.

Factors to Consider When Choosing Qsfp28 Breakout Cable

Choosing the right qsfp28 breakout cable involves more than just matching port types. Consider your specific network setup, including distance needs, hardware compatibility, and future scalability. Understanding these factors helps avoid common pitfalls like buying cables that are too short or incompatible with your switches, which can lead to costly replacements or performance issues.

Cable Length and Flexibility

Deciding on the appropriate cable length is crucial. Longer cables provide more flexibility for complex rack layouts, but they may introduce slight signal degradation or higher costs. Shorter cables are more affordable and easier to manage but could limit your setup options. Always measure your deployment area carefully to avoid unnecessary excess or insufficient length, which could hinder future expansion or rearrangements.

Active vs. Passive Cables

Active DAC cables include integrated electronics that boost signal integrity over longer distances, making them suitable for larger data centers. Passive cables, in contrast, are simpler and less expensive but typically best for short distances within racks. Choosing between them depends on your distance requirements and budget, but keep in mind that active cables often come with added compatibility considerations.

Compatibility and Standards

Not all qsfp28 cables work seamlessly with every device. Verify that your switches, servers, or storage hardware support the specific cable type and standards, such as Ethernet or InfiniBand. Mismatched cables can cause connectivity issues or reduced performance. It’s wise to check manufacturer specifications and user reviews to confirm compatibility before purchasing.

Build Quality and Durability

High-quality connectors and robust shielding help prevent signal loss and physical wear over time. Poorly made cables may seem cheaper initially but can lead to frequent disconnections or failures, especially in demanding environments. Investing in well-constructed cables can save money and headaches in the long run, particularly for mission-critical networks.

Cost and Value

Prices for qsfp28 breakout cables vary widely based on length, features, and brand reputation. While it may be tempting to choose the cheapest option, consider the tradeoff in reliability and performance. Sometimes paying a bit more for a trusted brand or feature-rich cable translates into fewer issues and better overall value. Balance your budget with the importance of consistent performance.

Frequently Asked Questions

Can I use a passive qsfp28 breakout cable for long-distance connections?

Passive cables are generally best suited for short distances, typically within a rack or a few meters. Using them over longer spans may result in signal degradation, leading to reduced speeds or dropped connections. For longer distances, active cables are preferable because they include electronics that help maintain signal integrity over extended lengths, ensuring reliable performance.

Are all qsfp28 breakout cables compatible with my switch?

Compatibility depends on the specific hardware and supported standards of your switch or server. Always verify the manufacturer’s specifications for supported cable types and whether the cable supports your data rate (e.g., 100G). Mismatched cables can cause connectivity problems or limit performance, so cross-reference your hardware documentation before purchasing.

What length of qsfp28 breakout cable should I choose?

Select a length that comfortably fits your rack or data center layout without excess slack, which can cause clutter or damage. For most rack-to-rack connections, 1 to 2 meters often suffices. If you need more flexibility or are working in larger setups, consider longer cables but be mindful of potential signal loss and higher costs. Accurate measurement of your deployment area helps avoid unnecessary expense or connectivity issues.

Is it worth paying more for a branded qsfp28 breakout cable?

Investing in reputable brands often guarantees better build quality, consistent performance, and reliable connectors, reducing the risk of failures. Cheaper, unbranded cables might seem attractive initially but can suffer from poor shielding or subpar connectors that lead to signal loss or physical damage. For critical environments, paying a premium for a trusted brand can provide peace of mind and longer service life.

How do I know if a qsfp28 breakout cable is suitable for future upgrades?

Look for cables that support higher data rates and are compliant with current industry standards. Choosing cables with broader compatibility and longer warranties can also help accommodate future hardware upgrades. Consider buying slightly longer cables if planning to expand or reconfigure your setup later, as this ensures your investment remains useful without needing immediate replacements.

Conclusion

For most users seeking reliable performance without breaking the bank, the 10Gtek 100G QSFP28 to 4x 25G SFP28 Breakout DAC Copper Twinax Cable, 2-Meter offers an excellent balance of quality and affordability. If your priority is longer reach and high stability, the 400GBe to 4x100GBe QSFP28 Active DAC Breakout Cable, 5m is the best premium choice. Beginners or those on a tight budget should consider the Intellinet QSFP28 to 4x SFP28 100G Passive DAC for straightforward setup. For enterprise-grade needs, ensure you select cables that support your hardware’s standards and future scalability.