Card computer case

For optimal strength, use 20% infill or more.
Print with PLA Plus or standard PLA.
Supports might be necessary; however, to achieve a stronger cover, orient the shorter part to touch the build plate. I initially printed the logo side down on my Ender 3, but it broke.
I designed this in Tinkercad. The back of the cover features an empty square for magnets, which makes it weaker, but still usable. For my own, I simply taped a small breadboard into place.