Based on the spec sheets, the connections do not look proprietary and it is standard form factor. In which case you should be fine.
It does mark the PSU as uATX - which I am not entirely certain if it means it is a small form factor. But I believe it is just micro form factor. I suspect it is because the case is microATX, but most uATX cases will fit a standard ATX PSU.
Probably worth just opening up and double checking the size of the PSU, but I suspect it is standard ATX size.
Looks like both the GPU and PSU are upgradeable.