1000Base-BX WDM Bi-Directional SFP Module TP-Link SM321B

TP-LINK SM321B adopts the latest standard 1000Base-BX, transmission over a single strand of fiber, with one different wavelength going in each direction. You can extend the network distance up to 10Km with TP-LINK’s Routers, Switches, Media Converters to provide high speed and stability.