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Arista

Arista CAB-O-8S-400G-1M | 400G OSFP to 8x 50G SFP DAC Breakout Cable, 1M

Arista CAB-O-8S-400G-1M | 400G OSFP to 8x 50G SFP DAC Breakout Cable, 1M

CAB-O-8S-400G-1M

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Description

The Arista CAB-O-8S-400G-1M is a 400GBASE-CR8 passive Twinax Direct Attach Copper (DAC) breakout cable designed for high-density data centre and hyperscale leaf-spine deployments. It fans a single OSFP-DD 400G port out to eight independent 50GBASE-CR SFP ports across 8 x 50G PAM-4 electrical lanes, delivering full 400G aggregate throughput at 1 metre reach. With no active components, power consumption is minimal and installation is plug-and-play — making it the ideal solution for short-reach breakout connectivity in HPC, hyperscale, and enterprise core environments.

Fully supported by Arista EOS (minimum version 4.23.0) and CloudVision, the CAB-O-8S-400G-1M eliminates optics qualification cycles and is backed by Arista TAC for peace of mind. It is compatible with Arista 400G OSFP platforms including the 7368X4, 7060X4, and 7050X4 series, and is available in 1M, 2M, and 3M lengths within the CAB-O-8S-400G-xM family. Upgrade your network with gear from iptrading.com.au — Australia's IT hardware specialists.

Features

- Passive Twinax copper construction — no active components, ultra-low power consumption
- Breakout architecture: one 400G OSFP-DD port fans out to 8 independent 50G SFP ports
- 8 x 50G PAM-4 electrical lanes delivering full 400G aggregate throughput
- Plug-and-play operation with native integration into Arista EOS and CloudVision
- Eliminates optics qualification cycles — fully supported by Arista TAC
- Ideal for high-density data centre, HPC, and hyperscale leaf-spine deployments
- Compatible with Arista 400G OSFP platforms including 7368X4, 7060X4, and 7050X4 series
- Available in 1M, 2M, and 3M lengths within the CAB-O-8S-400G-xM cable family

Warranty

Arista hardware products come with a 1-year limited hardware warranty, covering defects in materials and workmanship under normal use.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Arista products. Contact our team to explore options that align with your organisation's needs.
https://www.arista.com/assets/data/pdf/Warranty.pdf

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Datasheet

Technical Specifications

- Part Number: CAB-O-8S-400G-1M
- Cable Type: 400GBASE-CR8 Passive Twinax Copper DAC
- Connector (Host Side): OSFP-DD (Octal Small Form-factor Pluggable)
- Connector (Breakout Side): 8 x SFP (50GBASE-CR)
- Total Aggregate Bandwidth: 400G (8 x 50G PAM-4 lanes)
- Cable Length: 1 metre
- Cable Construction: Passive Twinax Copper
- Available Lengths: 1M, 2M, 3M (CAB-O-8S-400G-xM series)
- Minimum EOS Version: 4.23.0

FAQs

Q: What does the CAB-O-8S-400G-1M connect?
A: The CAB-O-8S-400G-1M connects a single OSFP-DD 400G host port to eight individual 50GBASE-CR SFP ports, functioning as a breakout DAC cable for high-density data centre switching environments.

Q: Which Arista switches are compatible with this cable?
A: This cable is designed for Arista 400G OSFP-DD platforms, including the 7368X4, 7060X4, and 7050X4 series. It requires Arista EOS version 4.23.0 or later for full functionality.

Q: Is this an active or passive cable?
A: The CAB-O-8S-400G-1M is a passive Twinax copper DAC cable. It contains no active electronic components, resulting in lower power consumption and simpler deployment compared to active optical cables.

Q: What other lengths are available in this cable family?
A: The CAB-O-8S-400G-xM family is available in 1M (CAB-O-8S-400G-1M), 2M (CAB-O-8S-400G-2M), and 3M (CAB-O-8S-400G-3M) lengths to suit varying rack and row distances.

Q: Can I purchase the Arista CAB-O-8S-400G-1M in Australia from IP Trading?
A: Yes. IP Trading (iptrading.com.au) is an Australian B2B IT hardware specialist stocking Arista optics and cables. Contact our team for pricing, availability, and volume procurement support.

Q: Does this cable work with Arista CloudVision?
A: Yes. The CAB-O-8S-400G-1M is fully integrated into Arista EOS and CloudVision, allowing seamless visibility, management, and support without additional qualification or third-party optics processes.

Datasheet

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