Gigabit 4 Channel Passive PoE ExtenderThis 4 port gigabit PoE extender include 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 330ft(100m). IEEE802.3af and IEEE802.3atThis 3 channel PoE extender works with all standard IEEE802.3af/at POE switches, POE injectors and POE NVRs. PoE voltage is 44-57V. The Max input is 30W, and the Max output is 30W. Each port can power standard PoE devices like IP phones, IP security, IP speakers, etc. VLAN and 3 Levels CascadeExtra 330ft(100m) PoE+ data transmission can be extended through a YuanLey PoE repeater. And it supports 3 levels cascade, therefore, it can achieve PoE data transmission up to 1312ft with 3 PoE extender. Out Ports 1 - 4 support VLAN isolation, preventing data leakage, and increase network security. Unmanaged PoE RepeaterNo setup is required, no power, just need a network cable to expand PoE network, plug and play. Su