StarTech.com MSA Uncoded SFP+ Module, 10GBASE-BX, 10 Gigabit Ethernet Bi-Directional (BiDi) Fiber Single Strand, Single Mode, SFP+, LC 10km, Mini GBIC Transceiver SFP+ Module, Downstream - Lifetime Warranty (SFP-10GB-BX-D-STA-ST) - SFP+ transceiver module - 10GbE - 10GBase-BX-D - LC single-mode - up to 10 km - 1270 nm / 1330 nm