Xigmatek Helios 232 specifications:
Tool-free retainers for 2 x 5.25" external drive bays Screw mount for 1 x 3.5" external drive bay Screw mount for 2 x 3.5" internal drive bays (can be converted for 2.5" HDDs) Two USB 3.0 super-speed ports on front panel Adapter-free 2.5" HDD mount Tool-free access for 4 x PCI slots Access cutout underneath CPU socket for easy cooler mounting Supports up to 160mm high side-flow tower coolers Support for long graphics cards up to 330mm Pre-installed 120mm Xigmatek Orange fan Top mounted PSU can be mounted in either fan up or fan down position Optionally supports 1 x 120mm front mount and 1 x 120/140mm side mount fans
Source: Legit Reviews