This is a rackmount case for a BananaPi M5 board. Details about the design and printing can be found on this post.

This rack-mount case for the Banana Pi M5 includes two different top options. One is a plain top, and the other has additional cut-outs for a 24mm fan and 3mm light pipes.

Measurements for the fan taken from the one that came with the kit (see the link below). The light pipe cut-outs are 3mm, and designed based on the light pipes listed below.

For assembly, the case requires a 6mm tall x 5mm wide M3 heat-set brass insert and an M3 flat head with a countersink. I've included links below for the hardware I used in this build.

Banana Pi M5 Kit - https://www.amazon.com/gp/product/B0BGKS5B97

Inserts - https://www.amazon.com/gp/product/B09Z1VXD9X

Screws - https://www.amazon.com/gp/product/B07TK93DCX

Light Pipes - https://www.amazon.com/dp/B06Y66WNR5