PoE power supply standard: support IEEE802.3af/at/bt DC44-57V (standard /PD program) Maximum support power of PoE input: 90W Maximum supported power of single port on PoE output: OUT1:60W, OUT2-4:30W (1-4 ports power intelligently allocated) Network rate: 5*10/100/1000Mbps Transmission distance: CAT5E/CAT6≤100 meters (can be cascaded down) Network transmission: 1/2,3/6,4/5,7/8 POE power supply pins: 1/2(+),3/6(-) and 4/5(+),7/8(-) Colour:Black Material:Aluminum Alloy Package Contents: 1 x 4 Port Gigabit POE Extender(Due to different product batches, the appearance , which does not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.