This case is designed for the RGBtoHDMI project and is compatible with all versions of the 3-Bit, 6-Bit and 12-Bit versions.
UPDATE:
22 July ‘22 - Improved snap fit and made the text deeper so it’s clearer to read.
https://www.tindie.com/products/cyberneticsys/tandy-1000-cga-ega-to-hdmi-dvi-or-vga-converter/
https://github.com/hoglet67/RGBtoHDMI/wiki
Mounting HW is as per the project recommendations:
1/ 11mm M2.5 threaded spacers
2/ 2.5mm Philips head screws
The author marked this model as their own original creation.