5 10/100M adaptive RJ45 ports, ports 1 ~ 4 support IEEE 802.3af standard PoE power supply Single port POE power can reach 15.4W, the maximum PoE output power of the whole machine is 40W Support IEEE802.3X full-duplex flow control and Backpressure half-duplex flow control Support port auto flip (Auto MDI / MDIX) function All ports have wire-speed forwarding capabilities 100M RJ45 port 5 PoE port 4FE Maximum PoE output power of the whole machine 40W Machine power consumption 46W PoE standard IEEE 802.3af Maximum PoE output power of the port 15.4W Mode switch no MAC address capacity 2K Shell size (mm) 173x119x37 Input power 220VAC , 50Hz Use environment Operating temperature: 0°C~40°C Storage temperature: -40°C~70°C Operating humidity: 10%~90% RH non-condensing Storage humidity: 5%~90% RH