4 Channel PoE Extender: This 4 port PoE extender includes 3 PoE out and 1 PoE in. It can provides PoE power to up to three PoE devices, 10/100/1000Mbps speed. Each PoE extender has an transmission distance of 100 meters (328ft). Compatible with IEEE802.3af/at: This 4 port gigabit PoE extender works with standard IEEE802.3af/at POE switches.Input Port 1 IEEE802.3af/at Max 30W, Output Port 2-4 Max 24W, Average 8W per port. PoE Voltage 44-57 Vdc. PoE pin: Input, 1/2 (+), 3/6 (-), 4/5(+), 7/8(-); Output: 1/2 (+), 3/6 (-). Unmanaged PoE Repeater: The gigabit passthrough PoE switch supports automatic detection of devices, no setup is required, no need for additional power adapter, powered by POE network, just need a network cable to expand PoE network, plug and play. Flexible Installation: With its mini size, YuLinca gigabit PoE extender is supported wall mount and din rail mount, space saving, suitable for more positions. Widely Used: The gigabit passthrough PoE booster supports one-