Arista SFP-25G-MR-XSR 10/25GB 850nm MMF 300m SFP Transceiver

The Arista SFP-25G-MR-XSR is a SFP28 10/25GBASE-MR-XSR optical transceiver for 25G links over duplex multimode fiber. It reaches up to 200 meters on OM3 and 300 meters on OM4 at 25G, or 300 meters on OM3 and 400 meters on OM4 at 10G and uses a duplex LC connector.

It is dual rate, so it runs at 25G or 10G. At 10G it works with 10GBASE-SR optics, though attenuation may be needed. Use a matching 10/25GBASE-MR-XSR optic at the far end of the link unless Arista lists the pairing above, and use multimode patch cables of the grade your reach requires.

If you need a different reach, the SFP-25G-LR 25GBASE-LR transceiver and the SFP-25G-SR 25GBASE-SR 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.

OM3 and OM4 multimode patch cables are normally aqua, and some OM4 cables are violet. Check that every patch cord and panel in the path matches the fiber grade your reach requires.

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 SFP-25G-MR-XSR is tested, working, and covered by the NetworkTigers one-year warranty.