Advantech Desktop/Wallmount Chassis for ATX/MicroATX Motherboard - Desktop/Wall Mountable - 4 x Bay - 0 - ATX, Micro ATX Motherboard Supported - 2 x Fan(s) Supported - 1 x External 5.25" Bay - 2 x External 3.5" Bay - 1 x Internal 3.5" Bay - 7x Slot(s) - 2 x USB(s):