Arista CAB-Q-Q-100G-2M 2m 100GB QSFP28 Direct Attach Cable

The Arista CAB-Q-Q-100G-2M is a 2-meter 100 Gigabit QSFP28 to QSFP28 direct attach copper cable. Arista's catalog describes it as a "100GBASE-CR4 QSFP to QSFP Twinax Copper Cable". It is a passive twinax copper cable, and Arista requires RS-FEC on 100G copper links. Arista also notes that these 100G cables can run at 40G, though 40G cables cannot run at 100G.

Most Arista switches support 100G copper cables, with a few exceptions such as the QSFP100 ports on the 7280SRAM-48C6, so confirm support on your platform. At this length it uses 30 AWG wire. Arista lists a minimum bend radius of 45mm, so leave room behind the rack for the cable to curve. Arista lists EOS 4.15.2 as the minimum software release.

If you need a different length, the shorter CAB-Q-Q-100G-1M 1m 100G QSFP28 direct attach copper cable and the longer CAB-Q-Q-100G-3M 3m 100G QSFP28 direct attach copper cable are also available. For longer runs, the AOC-Q-Q-100G-5M 5m 100G QSFP28 active optical cable carries the same speed over fiber.

Label both ends when you install it so the run is easy to trace later, and keep the connectors capped until you are ready to plug them in.

This seller refurbished CAB-Q-Q-100G-2M cable is tested, working, and covered by the NetworkTigers one-year warranty.