Arista QSFP-100G-LR4 100GB BASE-LR4 1310nm Long Reach SMF LC QSFP28 Transceiver

The Arista QSFP-100G-LR4 is a QSFP28 100GBASE-LR4 optical transceiver for 100G links over duplex single-mode fiber. It transmits at four LAN-WDM wavelengths from 1295.56 to 1309.14nm. It reaches up to 10 kilometers and uses a duplex LC connector.

It is the standard long-reach 100G optic for campus and metro links. Use a matching 100GBASE-LR4 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-LR4 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 QSFP-100G-LR4 is tested, working, and covered by the NetworkTigers one-year warranty.