The RPI POE module uses the Ethernet supply network to your ;To use this product, the network to which it is connected requires the installation of a supply.5V, 2.5APD ( receiving equipment) integration module (isolated type)Feature: fully supports IEEE802.3afInput voltage range: 37V to 57VSupport PoE applications in Fast/Gigabit Ethernet environmentsShort circuit protectionOver temperature protectionProgrammable classification (default: Class 0)High efficiency isolation level is 1.5KVrms.Easy to install and low cost (isolated type)Low output ripple and noise1500Vrms isolation (input-output)Colour:blackMaterial:PCBPackage Contents:1 x Ethernet expansion board (including fan)1 x screw packOnly 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.