24-10/100/1000 BASE-T Gigabit ports, 2-Port 10/100/1000 BASE-T Gigabit Uplink ports, 2-1000 BASE-X SFP Slot, 24-port IEEE 802.3at PoE+ Injector, 300 watts total Power budget, Supports PoE power up to 30W for each PoE port, Extend Mode (Transmit distance up to 250m at 10 Mbps ), Port Lightning Protection: Common Mode 4KV, ESD 8KV, Watchdog, 300W Internal