Arista 400GBASE-FR4 OSFP Transceiver, 2 km Duplex Single-Mode

A duplex single-mode pair carrying 400GbE for 2 km is the offer of the Arista 400GBASE-FR4 OSFP Transceiver, part number OSFP-400G-FR4. The connector is duplex LC and the form factor is OSFP.

The LC connector is the practical benefit. At 400GbE, many optics use parallel connectors that need dedicated trunks, while this one runs on the standard duplex single-mode patching already in many facilities. The reach covers links across a campus or large data center.

Be sure the host has OSFP cages, since QSFP-based ports will not accept this module. Check the supported-optics information for your Arista platform too, and fit a compatible module at the far end.

When choosing between single-mode options, think about distance and cabling: a shorter parallel module is often cheaper for in-building links, while a longer duplex module is the choice when spans run to a few kilometers.

The FR4 name tells you it multiplexes several wavelengths over the one fiber pair, which is how it manages without parallel cable.

The OSFP-400G-FR4 is available new, refurbished and used. New and refurbished modules carry 1 year or 3 years of warranty, and used modules carry 90 days. Send your quantity and platform for pricing.