Slim SD card holder

I wanted a discrete SD card holder that I could secure inside the lid of my Briefcase 3D printer https://www.youtube.com/watch?v=CZ2MgbKJJE8.

I couldn't find an existing design that suited, so here is my answer. I use double sided foam tape to stick it to a surface. The bottom 5mm is solid in case you would rather drill holes and screw it to something. I have allowed a bit of clearance inside. The exact fit is readily fine tuned by applying a bit of heat to the bottom of the curved cutout