This is in contrast to Coral Edge TPU which clocks at 2W, and 1.5W for Intel’s Myriad X powered Neural Compute Stick 2, with both of them running at about 4 TOPS. Its Kendryte K210 SoC provides 0.5-TOPS NPU performance and can run at as low as 0.3W. The plugin module, as well as the pre-trained models, will make your camera AI-enabled in minutes with a few Python API calls.

The HAT enables you to add AI features to your RPi based camera even if you don’t know how to train your model. The 65 x 30mm HAT is designed to be compatible with any 40-pin Raspberry Pi equipped with an RPi camera add-on. The HAT also supplies a Trust-M security chip. Kendryte K210 is a dual-core RISC-V AI processor that was launched in 2018, and you can find it in several smart audio and computer vision solutions. The K210 AI Accelerator is a compact Raspberry Pi HAT that utilizes the Kendryte K210 AI processor to enable 0.5 TOPs (Tera Operations Per Second) of processing power. On a RPi4B those pins are electrically commoned with the power input contacts of the USB-C socket.XaLogic had launched a campaign on Crowdsupply for a Kendryte K210 based HAT. You can power any RPI through those power pins. The 40 pin GPIO header has both GPIOs and power pins. You cannot power a RPi though signal pins. Perhaps I'm misunderstanding terms being noted in these posts, but regardless just thought I'd be helpful and point out that it does work. Here's another thread on this forum where it also mentions it isn't possible through the GPIO pins.

Second post in this thread specifically reads, 'You can't power the Pi via the GPIO.

In this very thread and others (link below to another topic on this forum). After all, that's how the official PoE HAT does it. It's common knowledge that the Pi 4B can be powered via the 'GPIO' header if you supply a stable 5V with sufficient current to the correct pins. Thought I'd post this here since it took me several hours to figure out, and a lot of folks saying it wasn't possible with Pi 4B to direct power through the 40 Pin GPIO.

Fritzing 40 pin raspberry pi header