4 x SFP fiber ports 1~8port support IEEE802.3af( IEEE802.3at optional) 8pcs 10/100/1000Mbps RJ45 adaptive Excellent cooling system with unique HIC solution IEEE802.3/u/x compliant Conspicuous LED indicators for power/link diagnose/data Support Auto MDI/MDIX PoE power for each port is 15.4W for AF and 30W for AT 6KV surge protection |