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Axiom CAB-S-S-25G-50CM-AX 25GBASE-CU SFP28 Passive DAC Twinax Cable - 1. 6 ft (0. 50 m) Arista Compatible

SKU: CAB-S-S-25G-50CM-AX
UPC: 841280166228
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MSRP: $92.72
$92.95
$75.95
Save: $16.77 (18.04%)
Warranty Information: Lifetime
Condition: New
Width: 1.23 (cm)
Height: 1.23 (cm)
Depth: 1.23 (cm)
Availability: Canada: Very Limited Supply
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Product Features

Description

Product Overview

The Axiom CAB-S-S-25G-50CM-AX is a 25GBASE-CU SFP28 Passive Direct Attach Copper (DAC) Twinax Cable designed for high-speed, short-reach data center and networking applications. This 1.6 ft (0.50 m) cable provides a reliable, plug-and-play connectivity solution between compatible SFP28 ports on routers and switches, eliminating the need for separate transceivers and fiber optic cabling.

Built with Arista compatibility, this DAC cable ensures seamless integration into Arista networking environments, supporting 25 Gigabit Ethernet data rates. The passive design offers a cost-effective and low-power alternative to active cables, making it ideal for high-density deployments where simplicity and efficiency are priorities.

Cable Snapshot
1.6 ft (0.50 m)
Direct Attach Cable
End A1 x SFP28 Network
End B1 x SFP28 Network
Cable Specifications
Cable TypeDAC
Cable Length1.6 ft (0.50 m)
Standard25GBASE-CU
Connectors
Connector End ASFP28 Network
Connector End BSFP28 Network
Connector Details1 x SFP28 Network per end
Compatibility & Features
Device SupportedRouter, Switch
FeaturesPassive
Arista CompatibleYes

Technical Overview

This cable adheres to the 25GBASE-CU standard, which defines 25 Gigabit Ethernet over copper twinaxial cabling for reaches up to 3 meters. The SFP28 connectors on both ends support the full 25 Gb/s data rate, providing a direct electrical connection that reduces latency and power consumption compared to optical solutions.

The twinaxial cable construction ensures signal integrity over short distances, with robust shielding to minimize electromagnetic interference. The passive architecture means the cable does not require external power or signal conditioning, relying on the host device's SFP28 port for operation.

Data Rate25 Gb/s
Max Reach3 m (per 25GBASE-CU)
Connector Count2
SFP28TwinaxCopper

Key Product Advantages

This DAC cable delivers several practical benefits for network infrastructure, focusing on performance, compatibility, and deployment efficiency.

Simplified Connectivity

The integrated SFP28 connectors provide a direct plug-and-play link between devices, reducing cable clutter and installation time compared to separate transceivers and fiber patches.

  • No separate transceivers needed
  • Direct electrical connection
  • Quick deployment

Cost and Power Efficiency

As a passive cable, it consumes no additional power and is more affordable than active optical cables, lowering total cost of ownership for short-reach links.

  • Zero power draw
  • Lower cost vs. active cables
  • Reduced heat generation

Arista Ecosystem Ready

Designed for compatibility with Arista switches and routers, ensuring reliable performance and interoperability in Arista-based networks.

  • Tested for Arista devices
  • Seamless integration
  • Supported topology

Deployment / Use Cases

This cable is optimized for specific networking scenarios where short-reach, high-speed connections are required between SFP28-equipped devices.

Common use cases include top-of-rack switching, where switches connect to servers or storage arrays within the same rack; spine-leaf architectures for inter-switch links in compact data centers; and router-to-switch connections in enterprise networking environments. Its 1.6 ft length makes it suitable for ultra-short runs where minimal cable management is desired.

Data Center Interconnects

Ideal for connecting switches to servers or storage within a single rack, supporting 25GbE for high-performance computing and storage networks.

Network Aggregation

Use for short links between aggregation switches or routers in enterprise or cloud infrastructure, providing low-latency, high-throughput connectivity.

[custom-highlights]

Highlights

  • 25GBASE-CU SFP28 Passive DAC Twinax Cable for 25 Gigabit Ethernet
  • 1.6 ft (0.50 m) length, ideal for short-reach connections in racks or tight spaces
  • SFP28 connectors on both ends, providing a direct plug-and-play solution
  • Arista compatible, ensuring reliable performance in Arista networking environments
  • Passive design for cost-effective, low-power operation without external power
  • Supports routers and switches, enabling high-speed device interconnects
  • Twinax copper construction for durable, interference-resistant signal transmission
  • Lifetime limited warranty for long-term reliability and peace of mind
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerAxiom Memory Solutions
Manufacturer Part NumberCAB-S-S-25G-50CM-AX
Brand NameAxiom
Product Name25GBASE-CU SFP28 Passive DAC Twinax Cable Arista Compatible 50CM
Product TypeNetwork Cable
Technical Information
Cable TypeDAC
Cable Length1.6 ft (0.50 m)
Connector Type on First EndSFP28 Network
Connector on First End Details1 x SFP28 Network
Connector Type on Second EndSFP28 Network
Connector on Second End Details1 x SFP28 Network
Device SupportedRouter,Switch
FeaturesPassive
Warranty
Limited WarrantyLifetime
[/custom-specifications][custom-faq]

FAQ

What is the maximum data rate supported by this DAC cable?

This cable supports a data rate of 25 gigabits per second (25 Gb/s), adhering to the 25GBASE-CU standard for high-speed Ethernet over copper twinaxial cabling.

Is this cable compatible with Arista networking equipment?

Yes, this DAC cable is designed for Arista compatibility, ensuring it works seamlessly with Arista switches and routers that have SFP28 ports, providing reliable connectivity in Arista-based networks.

What does 'passive' mean for this DAC cable?

Passive means the cable does not contain active electronics for signal conditioning or amplification. It relies on the host device's SFP28 port for power and signal integrity, making it a cost-effective and low-power option for short-reach connections.

What devices can I connect with this cable?

This cable is designed to connect routers and switches with SFP28 ports. It is commonly used for inter-switch links, switch-to-server connections, or router-to-switch setups within data center or enterprise networking environments.

[/custom-faq]
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Axiom CAB-S-S-25G-50CM-AX 25GBASE-CU SFP28 Passive DAC Twinax Cable - 1. 6 ft (0. 50 m) Arista Compatible
MSRP: $92.72
$92.95
$75.95
Save: $16.77 (18.04%)
Available & Ready to Ship