Based on for 40pin GPIO interface, suitable for 5 (not suitable for PI4B and PI3B). Support PoE Ethernet power supply and IEEE 802.3af/at PoE network standard. Supports NVMe protocol M.2 interface hard disk protocol, high-speed reading and writing, and high work efficiency. PCI-Ex1 Gen2 or Gen3 mode. Only supports for 5. Compatible with 2230/2242 size M.2 hard drives. Onboard working indicator light, PWR is always on when powered on, and ACT flashes when reading and writing, so the working status is clear at a glance. PoE power input:37V - 57V DC input Power output:GPIO pin header: 5V/4.5A (MAX) network standards:Support IEEE 802.3af/at PoE Product size:56 x 65 mm Support IEEE 802.3af/at PoE (The product appearance and printed words depending on the batch, but this does not affect use) Color: As Shown Material: PCB Package Contents: 1 * PoE Ethernet 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.