@Ryanteck You are right. I’m not sure it’s worth the USB interface. The module with USB and FTDI is $30 more expensive. I guess it makes sense from the RAK point of view to have an SPI-only and a SPI&USB version, a USB-only version would be nonsense. But for a RPi hat the USB part is worthless.
Anyway, I guess removing the USB connector, the switch and the reset button and adding an EEPROM and a few more components to make it hat compliant will cost more or less the same…