A Power over Ethernet (POE) expansion board for 5 that supports IEEE 802.3af/at network standard. Suitable for POE circuits supporting IEEE802.3af/at network standard Used together with a router or switch, the can be connected to the Internet and powered with just one network cable. Based on 40PIN GPIO interface, suitable for Raspberry Pi5 Support POE power supply over Ethernet, support IEEE8023af/at PoE network standard Adopts fully isolated switch mode power supply (SMPS) Onboard high-speed active cooling fans and metal heat sinks jointly accelerate heat dissipation Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:blue Material:PCB+metal Package Contents: 1 x PoE Expansion Board 1 x metal heat sink 3 x 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.