I have a small problem of understanding.
https://files.seeedstudio.com/wiki/ReTerminal/reTerminal-v1.6_SCH.pdf says :
Pin 101, 102 -> VCC3.3V
Pin 103, 104 -> SYS_5V
so far so good…
Pin 105, 106, 107, 108 -> GND
But the connector FX23-100S-0.5  has only 104 usable pins… (100 Signal + 4 power pins)
so where are the ground pins? Maybe the holes for the mounting pins?
Also, the pinout of the ReTerminal does not seem to match the pinout of the TecSpec from Hirose.
This leaves questions open… Could someone check this and if necessary add a picture that clearly shows how the pins have to be counted?