24-10/100/1000 BASE-T Gigabit ports, 19-inch, 2-1000 BASE-X SFP Slot, 24-port IEEE 802.3at PoE+ Injector, Supports PoE power up to 30W for each PoE port, CCTV Mode (Transmit distance up to 250m at 10 Mbps ), VLAN Isolation (Port-1 to Port-24), Port Lightning Protection: General Mode 6KV,Differential Mode 2KV, ESD 15KV, 300W Internal, Ver 2.0