The POE-104 is an unmanaged 6-Port Power over Ethernet Switch with a total of 60 watts of PoE power. All ports run at 10/100Mbps and can provide up to 30W per port through the IEEE 802.3at standard. It has two Ethernet uplink ports to allow for communication without sacrificing any PoE ports. It also features an "extend" switch to allow for PoE transmission of up to 600ft (which reduces data transmission to 10Mbps). Specifications: Ports: 2*10/100Mbps Uplink ports, 4*10/100 Mbps PoE ports PoE Protocol: IEEE802.3af (PoE), IEEE802.3at (PoE+), Switching Capacity: 1Gbps Power Pin: Endspan 1/2 (+), 3/6 (-) LED indicator: Power, Link/Act, 100Mbps, PoE StatusMAC Table Size: 1K Flow Control: Enabled Humidity: 10 - 90% Power input Voltage AC110V-220V Lightning Protection: Common Mode 2KV; Differential Mode 0.5KV Operating Temperature: 14F - 131F (-10C - 55C)