Perle CM-1000MM-S2ST10 Media Converter - 2 x ST Ports - 1000Base-SX, 1000Base-LH, 1000Base-LX - 6.21 Mile - Internal

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