The G400 TH Module is a through-hole breadboard-friendly version of the G400D SoM. Most signals are exposed on 0.1 inch spaced pads, making it easy for direct wiring or for adding headers.
The display's singals are exposed on a GXP compatible pinout, making it easy to connect displays.
The module only needs 3.3V to operate, even if a USB cable is being used. However, the USB voltage is available on a pad for wiring a regulator.