Arista

Arista CAB-O-8S-400G-3M | 400G CR8 OSFP to 8x50G CR SFP56 DAC, passive twinax copper, 3m reach

Arista CAB-O-8S-400G-3M | 400G CR8 OSFP to 8x50G CR SFP56 DAC, passive twinax copper, 3m reach

SKU:CAB-O-8S-400G-3M

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Description

400G breakout DAC cable that fans out an OSFP port to eight 50G SFP56 copper links over 3 meters. Ideal for access-layer server connectivity and short intra-row deployments seeking lower cost and power than optical solutions. Passive twinax design delivers consistent, low-latency performance for dense fabrics.

Features

- 3 m passive twinax for flexible short-reach layouts
- 400G to 8x50G breakout for dense server access
- Ultra-low latency and power vs. optical breakout
- Standards-aligned 50GBASE-CR with RS-FEC
- MSA-compatible OSFP and SFP56 ends for broad interoperability

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

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

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Technical Specifications

Technical Specifications

- Aggregate speed: 400G (8x50G PAM4)
- Breakout: 1x OSFP to 8x SFP56
- Lane standards: 50GBASE-CR with RS-FEC
- Host standard: 400GBASE-CR8
- Cable: Passive copper twinax (DAC)
- Reach/length: 3 meters
- Connectors: OSFP host, 8x SFP56 device ends
- Power: Passive, no in-cable power draw
- Environment: Data center short-reach interconnects
- Compliance: MSA OSFP/SFP56 DAC form-factor compatibility

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