This interface is nice and compact with competent build quality. It functions perfectly on a PC running Windows 10 and apparently under Linux, according to another review.
Unfortunately, my intention was to use it with an iPad, which detected the device, but will not send multiple note at once / polyphonically. I also tested on two different generation (m1 and intel) mac laptops with the exact same issue, so if you are an apple user, it is unlikely to work currently, assuming my device is not defective somehow. Btw, the tests were all done using the same (confirmed working) usb and midi cables across all devices.
This board plugs into just one of the two connectors on the back of the display and can be powered off of the usb port. It came with the example sketch shown in the video and is very well done. Delivery time took around five weeks but was free. I highly recommend this purchase.