SFP Optical Transceiver Modules, Single Mode, GLC-BX-U, 10KM 1000BASE-BX10-U WDM Bi-Directional, LC Connector, TX-1310/RX-1490, Cisco CompatibleComparable to Cisco's GLC BX U and compatible with Cisco switches. Description SFP Fiber Transceiver Modules, GLC BX U, 1000BASE BX10 U WDM Bi Directional, TX1310nm RX1490nm SMF, up to 10 Kilometers, LC, Cisco Compatible The industry standard Small Form Factor Pluggable (SFP) Gigabit Interface Converter is a hot swappable input output device that plugs into a Gigabit Ethernet port or slot, linking the port with the network. SFPs can be used and