Gigabit 5 Channel Passive PoE ExtenderThis 5 port gigabit PoE extender include 4 PoE out and 1 PoE in(Max 90W). It can provides PoE power to up to four PoE devices, 10/100/1000Mbps speed. Each PoE extender has an transmission distance of 330ft(100m). IEEE802.3af/at/btThis 4 channel PoE extender works with all standard IEEE802.3af/at/bt POE switches, POE injectors and POE NVRs. PoE voltage is 44-57V. The Max input is 90W, and the 3-5 Port Max output is 30W, 2 Port Max output is 60W. Each port can power standard PoE devices like IP phones, IP security, IP speakers, etc.