Arista

Arista CAB-O-2Q-400G-2M | 400G-CR8 OSFP → 2×200G-CR4 QSFP56, passive twinax DAC, reach 2m, wavelength: n/a, connectors: OSFP to 2×QSFP56

Arista CAB-O-2Q-400G-2M | 400G-CR8 OSFP → 2×200G-CR4 QSFP56, passive twinax DAC, reach 2m, wavelength: n/a, connectors: OSFP to 2×QSFP56

SKU:CAB-O-2Q-400G-2M

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Description

Passive OSFP-to-dual-QSFP56 breakout DAC for 400G to 2×200G links (400GBASE-CR8 to 200GBASE-CR4). Ideal for short-reach, in-rack leaf/spine or server uplinks where ultra-low latency and zero power draw are desired. Requires host RS-FEC per IEEE 802.3bs/cd.

Features

- 400GBASE-CR8 to dual 200GBASE-CR4 breakout in a single assembly
- Passive twinax design for ultra-low latency and zero power consumption
- Standards-based signaling (IEEE 802.3bs/cd) for broad interoperability
- Robust OSFP and QSFP56 latching connectors for secure installs
- Optimized for short-reach, high-density in-rack deployments

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: 400 Gbps
- Breakout: 2 × 200 Gbps
- Host side form factor/standard: OSFP, 400GBASE-CR8
- Remote side form factor/standard: 2 × QSFP56, 200GBASE-CR4
- Cable type: Passive twinax DAC (copper), wavelength: N/A
- Electrical lanes: 50G PAM4 (CR8 ↔ CR4)
- Length: 2 meters
- Connectors: OSFP (1) to QSFP56 (2)
- Standards: IEEE 802.3bs (400G), IEEE 802.3cd (200G)
- FEC: RS-FEC required on host ports
- Typical use: 400G switch port breakout to dual 200G ports/NICs

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