From the CAD drawing it looks like there is a bit of space left:
Using that CAD software measuring tool I get about 2.49in (63.24mm) more between the Power Supply and the PCB board. Which would mean 170mm would fit, 210 not so much. Keep in mind cables coming out of it too.
I’m not that great with this CAD software though so maybe you can measure a bit better: Onshape