he EM104, Gigabit Ethernet Multiplexer, IEEE802.3AB 1000Base-T; 1000Base-SX/LX/LH ... LX/LHFiber cable: Multi-mode, single-modeData transfer Rate: 2.5Gpbs for SFP1, 1.25Gpbs FOR SFP2 and SFP3LED ... indicators; Power, P1 2.5G, P1 link/Act, P2 Link/Act, P3 Link ... ActPower requirement: 220V(110-145V) AC, 50/60HzAmbient temperature:0 to 50°CHumidity: 5 to 90%Dimensions: 26*70* ...