Arista 10GBASE-LR SFP+ Transceiver Module, Single-Mode LC

When a 10GbE link must go beyond a building's multimode cabling, the Arista 10GBASE-LR SFP+ Transceiver Module, part number SFP-10G-LR, covers up to 10 km over single-mode fiber. It uses a duplex LC connector.

That reach suits campus backbones, links between nearby sites and handoffs from providers that deliver single-mode fiber. Because the connector is LC, standard duplex single-mode patching is enough, and no parallel cabling is needed.

The form factor is SFP+, so the module fits the usual 10GbE cages. Check the manufacturer's data if your design requires the wavelength. The fiber has to be single-mode all the way, and the loss on the actual route should be measured against the module's budget.

Arista switches maintain a list of supported optics, and server adapters on the far end may have their own restrictions, so confirm compatibility for each device before ordering. The far end of the link needs a compatible LR module.

For a short link inside a building, a multimode short-reach module usually costs less and does the same work. Choose LR when the distance or fiber type calls for it.

The SFP-10G-LR is offered new and refurbished, each with a choice of 1 year or 3 years of warranty. No used offer is listed. Send your quantity and platform for pricing.