For GPIO header, for connecting sorts of for HATs 10/100M auto-negotiation Ethernet port, with PoE enabled 4 x USB ports, allows connecting more USB devices 2 x camera interfaces Onboard / interfaces for connecting displays The Compute Module PoE Board is a development board which you can plug a for Compute Module into, and make use of the resources of Pi more flexibly. With the PoE (Power over Ethernet) feature, and versatile onboard peripheral interfaces, it is suitable for evaluating the for compute module, also is an perfect choice for end products. Onboard USB TO UART, for serial debugging Cooling fan interface, auto run on power up OR controlled by IO pins Adopts isolated SMPS (Switching Mode Power Supply) Power supply:micro-USB port / PoE Ethernet port PoE power input:37V - 57V DC in PoE power output:5V 2.5A DC out Network standard:802.3af PoE standard Due to different batches, the appearance, color and printed words of the product , which will not affect the use. Colour:Blue Material:PCB Size:114mm x 84.4mm, Mounting hole size: 3.2mm Package Contents: 1 * POE Board 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.