This is a box for the Analog ADL5387 IQ Demodulator evaluation board. It has two mounting points for M6 screws.
If you want to have a hex-mesh grid-like mine print, then use my gcode (PTFG, 250C) or slice print yourself and use the modifier files to locally change the number of top/bottom layers to 0 and set the infill density and pattern to desired.
There are also files with the text for applying a print-on-print technique which from my experience gives better resolution than changing the color of one layer.
The author marked this model as their own original creation.