The STARTECH,COM SFP10GBBXUST MSA UNCODED TRANSCEIVER - 10GBASE-BX WDM SFP+ (10 GBPS) - 10 GIGABIT BIDI MODULE is a 10GBASE-BX transceiver that supports 10 Gbps data rates over single-mode fiber It is compliant with MSA (Multi-Source Agreement) specifications and is also Uncoded