Features:• 4*10/100Mbps RJ45 PoE port• 2*10/100mbps RJ45 Uplink port• The whole power is up to 72W(52V 15A)• The max power is 30W for single port• 250m Distance• Support IEEE8023AF/AT• All port supported by MDI/MDIX auto flip and self negotiation• Supply 4 10/100Mpbs adaptive high speed forwarding data packet non-lost port• Support IEEE8023x flow control for Full-duplex mode and backpressure for Half-duplex mode• 4pcs 10/100Mbps RJ45 supports PoE, satisfying monitoring of security, teleconference system and wireless AP application, etc• Comply with the standard IEEE8023af/at, the whole power is up to 78w, 30w for single port• Automatically detect the PoE devices without damage to the devices• Power priority mechanism for the PoE portsTechnical Specifications:• POE Port: 1 to 4 support IEEE8023AF/AT Standard• Output Power: 154W/30W IEEE8023af/at• Power Pin: Both 1/2+?3/6- and 4/5+7/8-• Whole Power: =78W (52V 15A)• POE Protocol: IEEE 8023af/IEEE 8023at• POE Type: End-span• Power Distance: 250m• Network Standard: IEEE 8023? IEEE8023u?8023x?8023af/at• Network Medium: 10/100BASE-TX:5 class and above non shielded twisted pair• Data Distance: 250m• Switch Capability: 1Gbps• Forwarding Mode: Store and forward• Forwarding Rate: 10BASE-T:14880PPS/port 100BASE-tx:14800pps/port• MAC Address: MAC address table 1K• Port Function: Power priority mechanism, fast and forward, MAC automatic learning and aging IEEE8023X Full-duplex and mode and backpressure for Half-duplex mode• LED Indicator: LINK/ACT100Mbps;POE Status Indicator; Power indicator;Extender• Working Environment: Working temperature:-10°– 55°C• Weight: 08kg• Size: 136×66×32(L*W*H)mm