UCTRONICS PoE Splitter USB-C 5V - Active PoE to USB-C Adapter, IEEE 802.3af Compliant for Raspberry Pi 4, Google WiFi, Security Cameras, and More

does the job perfectly

Works as expected and I've been powering a raspberry pi 4b over POE for around 16 months now and counting... touch wood.

Update (June 8th) : I've ordered another unit from another seller and I received it the next day. This time, the splitter was really from Uctronics and It worked out of the box. I've ordered 2 UCTRONICS PoE Splitter USB-C 5V - Active PoE to USB-C Adapter. The splitters received are not form UCTRONICS. And both unit are defective. The power is delivered through the USB-C interface but the ethernet port is dead on both units.

I am using this to power a raspberry pi with a z-wave dongle from a UniFi Poe switch. It works great. The pi shows drawing 3 watts in the UniFi Controller software.

I use this to get power and ethernet to a Raspberry Pi 400 from my PoE network, and it works perfectly. My only gripe is that it's not available in white!

Simply works