Tp-Link TL-SM321B Network Transceiver Module Fiber Optic 1250 Mbit/S Sfp - TL-SM321B-2

TP-LINK´s TL-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(6.2 miles) with TP-LINK´s Routers, Switches, Media Converters to provide high speed and stability.