Media Converter, Mini, w/ PoE, Ethernet to Optical, 12VDC@3A/24VDC@1.5A, Ports (10/100Mbps Ethernet, 10/100 BASE-T/TX Electrical, 100 BASE-FX Optical), Auto MDI/MDI-X Crossover, LED Indicators, 4.1x3.7x1.1in