Perle S-100-M2ST2 Fast Ethernet Stand-Alone Media Converter - 1 x Network (RJ-45) - 1 x ST Ports - 10/100Base-TX, 100Base-FX - 1.24 Mile - External, Rail-mountable, Rack-mountable, Wall Mountable

With 10/100Base-TX technology get up to 100Mbps data transfer rate over optical fiber 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