Features: The PoE HAT (D) is an 802.3af-compatible Power Over Ethernet accessory for the Raspberry Pi 3B+/4B. With this little HAT and some proper 802.3af-compliant power sourcing equipment, it's possible to get both network connectivity and power for your Raspberry Pi in just one Ethernet cable. Supports Raspberry Pi 3B+/4B, for the Raspberry Pi official for case. PoE (Power Over Ethernet) capability, IEEE 802.3af compliant. Fully Isolated Switching Power Supply (SMPS). Onboard high speed active cooling fan, better heat dissipation. Specifications: PoE power supply: 37V~57V for DC in Output: 5V 2.5A for DC out Network standard: 802.3af PoE Size: approx. 90X60mm/3.54x2.36in Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Set x Raspberry Pi POE Module + for Case