The model is a case for the AJ-27-2-L DC-DC converter board. The models are made in 123D Design application. Original 123DX files included.The overall dimensions of the case are 44.5x52x18 mm.Notice the power connector on the AJ-27-2-L board is offset 1mm to the right of center!!!The main body part is presented in 2 versions: with a flat bottom surface and with seats for round magnets or supports with a diameter of 12 mm. Hole depth 1.3 mm