HP mini-itx/micro-atx PC case. (Oakridge RG21)

HP small PC case. Originally had a mini-itx mobo in it, looks likely it would also be possible to squeeze in a micro-atx mobo. The original motherboard had an integrated PSU, so there is no PSU in the case, though it looks like there is a mounting point on the back of the case for small one - unsure what size though. Case comes with an (untested) slim SATA DVD drive as shown in the photos.