Perle SMI-1110-S2ST10 Media Converter - 2 x Network (RJ-45) - 1 x ST Ports - Management Port - 1000Base-T, 1000Base-LX, 10/100/1000Base-T - 6.21 Mile - External, Rail-mountable, Rack-mountable, Wall Mountable

With 1000Base-T technology get up to 1000Mbps data transfer rate over twisted pair cable The External provides convenient installation Attach multiple devices together or expand the number of devices connected to your existing network by using 2 transceiver/media converter