Axiom
100GBASE-CR4 QSFP28 TO 4x25GBASE-CU SFP28 PASSIVE DAC
Best breakout cable for high-density data center network upgrades.
This Axiom Twinax Direct Attach Cable (DAC) efficiently bridges 100GBASE-CR4 connectivity by converting a QSFP28 port to four SFP28 connections. Designed for high-performance networking, this passive cable ensures 100% compatibility across various OEM applications. It features unique serialization to prevent communication conflicts and adheres fully to the multi-sourcing agreement (MSA) for broad platform support. This pre-terminated copper cable offers a reliable, plug-and-play solution for data center and enterprise environments, backed by a limited lifetime warranty for peace of mind.
$245.00
Owner Satisfaction
4.5
/ 5
Category Rank
2345
/ 6543
#2345 in Network Cables
Price vs Category Average
-32%
Below average
Data Rate
100
/ Gbps
Who it's for
- Budget-conscious IT managers minimizing operational overhead
- Engineers building high-performance computing environments
- Network architects maximizing rack space efficiency
Who should skip it
- Data center teams connecting equipment across different rows
- Technicians managing airflow in densely packed server racks
- Administrators using hardware with strict proprietary vendor requirements
Performance breakdown
Compatibility Assurance
Strict MSA compliance ensures seamless integration across diverse OEM hardware environments.
Signal Integrity
Shielded twisted pair construction effectively minimizes interference for stable high-speed data.
Deployment Simplicity
Passive plug-and-play design eliminates complex configuration for rapid network scaling.
Build Durability
Stranded copper cabling provides the necessary flexibility for tight rack installations.
Port Versatility
Efficiently bridges high-density QSFP28 ports into four distinct 25G SFP28 channels.
Reliability Guarantee
Limited lifetime warranty offers long-term peace of mind for critical infrastructure.
Key Specs
Data Rate
100 Gbps
Cable Type
Direct Attach Cable (DAC)
Length
1.5 m
Connector (First End)
QSFP28
Connector (Second End)
4 x SFP28
Technology
Twinaxial Copper
Network Cable Type
100GBase-CR4 direct attach cable
Compliant Standards
MSA
Features
- 100% Guaranteed OEM compatibility
- Unique serialization prevents network conflicts
- Fully compliant with multi-sourcing agreement (MSA)
- Passive cable design for simplicity
- Enables 100G to 4x25G port conversion
- Pre-configured for router and switch OEMs
- Performs identically to original manufacturer cables
- Limited lifetime warranty included
What customers say
Customers highly value this breakout cable for its exceptional cost efficiency compared to original equipment manufacturer options. The primary focus is on its outstanding value proposition for scaling high-density data centers. Users consistently report immediate plug and play functionality and stable link establishment at full 100G and 25G speeds once correctly coded for their specific switch vendor. Signal integrity for short reach applications is rated highly, proving its technical reliability. While compatibility requires careful pre-purchase verification regarding vendor coding, the overall sentiment confirms this product delivers dependable performance, significantly reducing infrastructure capital expenditure. It is viewed as a reliable workhorse for high-speed connectivity.
Know before you buy
This cable is designed to bridge a single 100G QSFP28 port on a switch or router into four separate 25G SFP28 connections. It is ideal for high-density environments where you need to distribute 100G bandwidth across multiple lower-speed devices.
No, this is a passive, plug-and-play solution. Because it is fully MSA-compliant and pre-serialized, it should be recognized by your equipment immediately upon connection without requiring manual software adjustments.
Yes. Axiom cables are engineered for 100% OEM compatibility, meaning they are designed to perform identically to the original manufacturer's cables across a wide range of networking platforms.
Yes, passive DAC cables rely on the host equipment to manage signal integrity, which limits their effective reach. This specific cable is 1.5 meters (4.92 feet) long, which is the standard optimal length for rack-to-rack or top-of-rack connectivity.
Unique serialization ensures that each cable has a distinct identifier recognized by your network hardware. This prevents communication conflicts that can occur when multiple cables are plugged into the same switch, ensuring stable and reliable data transmission.
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