This is an ATX case with a motherboard. The motherboard is old by todays standards and should be replaced. This was working fine years ago when my son was using it. He was using windows 7. The motherboard is MSI K9N4 SLI built for amd processors. It supports only 8gig ram so really should be rebuilt. I built this from scratch many years ago. It will have no hard drive with an operating system installed but everything else. So basically selling a nice case.