SFP10GBX40US - Startech Dell EMC SFP-10G-BX40-U Compatible SFP+ Module, 10GBASE-BX-U, 10 Gigabit Ethernet Bi-Directional (BiDi) Fiber Single Strand SFP+, LC 40km, Mini GBIC Transceiver SFP+ Module

Lifetime Warranty (SFP10GBX40US) - SFP+ transceiver module (equivalent to: Dell EMC SFP-10G-BX40-U) - 10GbE - 10GBase-BX40-U - LC single-mode - up to 40 km - 1270 nm / 1330 nm