“Exactly the right height with a heat spreader pad to use the metal case as heat sink, keeping the NVMe nice and cool. Using standar RPI standoffs allows the IO board to be screwed to the case and the adapter to go on top, creating a strong, rattle free construct.”
“Works perfectly and fits inside the waveshare case as hoped. However the standoffs provided are wrong for inside the case. They should be threaded one end to secure the cm4io board, so I had to find my own.”