Based on for 40pin GPIO interface, suitable for 5 (not suitable for PI4B and PI3B). Support PoE Ethernet power supply and IEEE 802.3af or 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 or 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 or 4.5A (MAX) network standards:Support IEEE 802.3af or at PoE Product size:56 x 65 mm Support IEEE 802.3af or 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 x 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.