I created this box to cover my DPS5020's PCB when attaching it to my Siemes Simatic (SITOP) Power supply unit... so it would be a perfect fit for that PSU, but can be used to attach your DPS DC-DC converter to some other PSUs as well.
for simplicity I've only attached it in the upper part (so I can easily disassemble the SITOP if needed.
it also has place for the Bluetooth module PCB