The carbide series 300r windowed is a compact expression of the corsair philosophy great systems begin with a great case open the easy access side panel to find a builder friendly design with three tool free optical drive bays and four tool free hard drive bays with integrated 25 ssd compatibility theres room for extra long graphics cards and the matte black interior really shows off your gear finish off your build with a cable routing system that keeps wires and cables out of sight and