Arista CAB-O-2Q-400G-3M | 400G OSFP to 2x 200G QSFP56 Breakout DAC Cable, 3m

Q: What does the CAB-O-2Q-400G-3M do exactly?
A: This cable breaks out a single 400G OSFP port into two independent 200GBASE-CR4 QSFP56 connections over a 3-metre passive twinax copper cable. It is commonly used for spine-to-leaf breakout or connecting high-speed servers and storage to Arista switches.

Q: Which Arista platforms support this OSFP breakout cable?
A: The CAB-O-2Q-400G-3M is designed for use with Arista platforms that feature OSFP 400G ports, including the 7800, 7500R3, 7300X3, and 7170 series. Always verify port compatibility with your specific switch model and EOS version.

Q: Is this an active or passive cable?
A: It is a passive Direct Attach Copper (DAC) cable, meaning it contains no active electronic components. This results in zero additional power draw and extremely low latency, making it the preferred choice for short in-rack or top-of-rack connections.

Q: What is the maximum distance supported?
A: As a passive DAC cable, the CAB-O-2Q-400G-3M supports up to 3 metres. For longer distances, active optical cable (AOC) or transceiver-based fibre solutions should be considered.

Q: Can this cable be used with non-Arista equipment?
A: While the cable is vendor-coded for Arista platforms, OSFP to 2x QSFP56 breakout DAC cables may function with other vendors' equipment in some configurations. However, Arista-coded cables are only guaranteed to be recognised and supported on Arista hardware.

Q: Can I purchase the Arista CAB-O-2Q-400G-3M in Australia?
A: Yes. IP Trading Australia stocks Arista networking hardware and cables and ships Australia-wide. Visit iptrading.com.au or contact the team directly for pricing, lead times, and volume availability.