Arista QSFP-100G-ERL4 100GBASE-ERL4 30-40km SMF Transceiver QSFP28

The Arista QSFP-100G-ERL4 is a QSFP28 100GBASE-ERL4 optical transceiver for 100G links over duplex single-mode fiber. It reaches up to 30 kilometers without FEC and 40 kilometers with FEC and uses a duplex LC connector.

It interoperates with IEEE 100GBASE-ER4 optics up to 30 kilometers. Short links need attenuation so the receiver is not overloaded. Use a matching 100GBASE-ERL4 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.

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-ERL4 is tested, working, and covered by the NetworkTigers one-year warranty.