Arista AOC-S-S-25G-3M 3m 25GB SFP28 Active Optical Cable

The Arista AOC-S-S-25G-3M is a 3-meter 25 Gigabit SFP28 to SFP28 active optical cable. Arista's catalog describes it as a "SFP to SFP 25GbE Active Optical Cable". It is built on 850nm multimode fiber with the optics sealed into each connector, and Arista rates its maximum power at 1.0W.

It plugs into 25G SFP28 ports, and Arista sells it in lengths from 3 to 30 meters. Arista lists EOS 4.18.0 as the minimum software release.

If you need a different length, the longer AOC-S-S-25G-5M 5m 25G SFP28 active optical cable is also available. For short runs inside a rack, the passive copper CAB-S-S-25G-3M 3m 25G SFP28 direct attach copper cable is an alternative with no optics in the link. A new AOC-S-S-25G-3M 3m 25G SFP28 active optical cable is also available.

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.

Check that the ports at both ends of the link are set to the same speed before you connect it.

Because the fiber is fixed to the connectors, an active optical cable cannot be shortened or re-terminated, so choose a length that leaves a little slack for routing.

This seller refurbished AOC-S-S-25G-3M cable is tested, working, and covered by the NetworkTigers one-year warranty.