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+ transceivermodul - 10GbE