An IEEE 802.3af PoE Solution. We have developed a smaller, more efficient Pi-HAT than the official one from Raspberry Pi still with opto-isolation. This PoE HAT works with an IEEE 802.3af network switch or 48v PoE injector. Fits Raspberry Pi 3 B+ and Raspberry Pi 4 (Not Included). Our design fits inside the Official Pi enclosure case and takes up less of the board space, delivering active Power Over Ethernet (Power + Data) with auto-negotiation. Smaller and more space efficient than the Official Pi-HAT. Fits inside Official Raspberry Pi Enclosure (Not included). Comes with a heat sink. No cooling fan required. Fanless design is slim, sleek, compact, and less bulky. Extra layer of protection: optocouple isolation with flyback topology to prevent shorting the board, especially for media applications. Provides a regulated 5 volts 2.4 amp with solder pads on top for a DC bus. Increases efficiency above 90% for DC to DC conversion. All of our PoE products are backed by a 1-Year repl