Arista QSFP-100G-PSM4 100GB BASE-PSM4 1310nm DOM MTP/MPO SMF QSFP28 Transceiver

The Arista QSFP-100G-PSM4 is a QSFP28 100GBASE-PSM4 optical transceiver for 100G links over parallel single-mode fiber. It transmits at 1310nm. It reaches up to 500 meters and uses an MPO-12 APC connector.

Arista lists it as dual rate, so it also runs at 40G. Use a matching 100GBASE-PSM4 optic at the far end of the link unless Arista lists the pairing above, and use single-mode patch cables.

If you need a different reach, the QSFP-100G-SR4 100GBASE-SR4 transceiver and the QSFP-100G-SWDM4 100GBASE-SWDM4 transceiver are also available. A new QSFP-100G-PSM4 is also available.

Arista publishes a transceiver compatibility guide that lists which switch platforms and EOS releases support each module, so check it for your switch before you order.

Single-mode fiber is normally run in yellow jacketed patch cables, so check that every patch cord and panel in the path is single-mode before you connect it.

Keep the dust caps on the optic and the fiber until you are ready to connect them, and clean the connector end faces before you plug them in. Most failed optical links come down to a dirty connector.

The module is hot-swappable, so you can install or replace it without powering down the switch. Check that the port is set to the right speed before you bring the link up.

This seller refurbished QSFP-100G-PSM4 is tested, working, and covered by the NetworkTigers one-year warranty.