The rear panel packs as much as 10 expansion slots, which means Quad-SLI or CrossFireX setups won’t be a problem. The eleventh, vertical slot has an ordinary cover. We must say we’d rather see the special StormGuard cover here. The StormGuard cover is featured on the Trooper, the case which we reviewed here, and you can use it to prevent your keyboard and mouse from being stolen. 

The PSU is mounted on the bottom, but Cooler Master implemented a special slot that leaves more room inside. The extended slot looks quite nice and is flush with the case when watching from the side. 

Below the PSU is a filter that can be removed without opening the case. 

The metal feet are attached to the chassis and come with rubber pads. It results in Cosmos II being quite difficult to move without lifting it off the ground.