Hi there,
Unfortunately NO. USB_C breakout won’t do it.
The pins are only on the bottom if is a Nrf52840 Xiao
Best to make a hole below the inside of the footprint of Xiao on PC board so you can always access them.
HTH
GL 
PJ
Hi there,
Unfortunately NO. USB_C breakout won’t do it.
The pins are only on the bottom if is a Nrf52840 Xiao
Best to make a hole below the inside of the footprint of Xiao on PC board so you can always access them.
HTH
GL PJ