Case for the Nooelec LaNA HF - Ultra Low-Noise LF, MF & HF Amplifier. 

Base includes two holes for mounting, or optionally, put in some m3 heatset inserts to keep your board secure.  The two halves slide together with a small lip that friction fits to keep them together.  In testing, this proved to be really quite good at doing its thing.

Print without supports, maybe not at your top speed.  There are unsupported overhangs that will need to be printed without support material to allow for a proper fit.