Arista CAB-O-O-400G-1M | 400G OSFP DAC Twinax Cable, 8x 50G PAM-4, 1 Metre

Q: What platforms is the CAB-O-O-400G-1M compatible with?
A: The CAB-O-O-400G-1M is designed for use with Arista switching and routing platforms equipped with OSFP (Octal Small Form-factor Pluggable) ports that support 400GBASE-CR8. This includes Arista's 7800, 7500, and 7000 series platforms with 400G OSFP port configurations. Always verify OSFP port compatibility with your specific Arista platform before ordering.

Q: Is this an active or passive cable, and what does that mean for my deployment?
A: The CAB-O-O-400G-1M is a passive Direct Attach Copper (DAC) cable, meaning it contains no active electronic components. This results in near-zero latency, lower power consumption, and reduced cost compared to active optical cables (AOC). Passive DAC cables are ideal for short-reach connections — typically within a rack or between adjacent racks.

Q: What is the maximum reach of this cable?
A: This cable is 1 metre in length, making it suited for within-rack or very short rack-to-rack connections. For longer runs, Arista also offers 2M and 3M variants in the same OSFP 400G DAC family. For distances beyond 3 metres, active optical cables or transceiver-based fibre solutions would be recommended.

Q: What standard does the CAB-O-O-400G-1M comply with?
A: The cable complies with IEEE 802.3cd (400GBASE-CR8) and is OSFP MSA compliant. It uses 8 x 50G PAM-4 electrical lanes to deliver the full 400 Gbps aggregate throughput defined by the standard.

Q: Can I purchase the CAB-O-O-400G-1M in Australia from IP Trading?
A: Yes. IP Trading (iptrading.com.au) is an Australian B2B IT hardware reseller with the CAB-O-O-400G-1M in stock and ready to ship. Orders placed through iptrading.com.au benefit from fast local dispatch, Australian-based support, and access to the manufacturer's 1-year limited hardware warranty.

Q: What warranty does the Arista CAB-O-O-400G-1M carry?
A: Arista provides a 1-year limited hardware warranty covering parts, repair, or replacement with a 10-business-day turnaround after the unit is received. Optional next-business-day and 4-hour advance hardware replacement programmes are also available for customers requiring elevated support levels.