1.This series use standard PSE chip ,follow international standard PoE protocol,accurately identify the power of connected devices and supply the watts required 2. Power supply mode：1 2 + ,3 6 - 4 cores 3.The maximum output power of one sigle PoE port :30W 4. support VLAN function 5. support 250meters extended 6.high cost-effectiVe power supply 7. short-Circuit protection 8. Higher stability and compatibility 9. Linghtning protection :4kv/6kv