Arista OSFP-400G-FR4 400GB BASE-FR4 1310nm 2km SMF LC DOM OSFP Transceiver

The Arista OSFP-400G-FR4 is a OSFP 400GBASE-FR4 optical transceiver for 400G links over duplex single-mode fiber. It transmits at 1271, 1291, 1311, and 1331nm. It reaches up to 2 kilometers and uses a duplex LC connector.

It carries a single 400G link over one fiber pair and does not break out into lower speeds. Use a matching 400GBASE-FR4 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 OSFP-400G-SR8 400GBASE-SR8 transceiver and the OSFP-400G-DR4 400GBASE-DR4 transceiver are also available. A new OSFP-400G-FR4 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.

This seller refurbished OSFP-400G-FR4 is tested, working, and covered by the NetworkTigers one-year warranty.