"… Because of its rather unusual shape, the case doesn’t have a panel you can pop off to get inside it and build your system. Rather, it features a so-called sub-chassis, which can be slid right out the back for easy access. Despite that, we can’t imagine this being easy to build in, as sliding it on when there’s lots of cables and clutter around might prove challenging, though should be doable. Inside, there is space for up to ATX size motherboards and multiple graphics cards up to 400mm long (there are 8 expansion slots plus one area for vertical GPU mounting)."