Cooler Master Mini 300W Micro ATX Desktop Case, Black MIN-210-KKR300 Case Type: MicroATX Desktop Material: Polymer(Appearance) /SECC (Case Body) M/B Type: MicroATX Drive Bays: 3 (External: 1x 5.25", 1x 3.5"/Internal: 1x 3.5" (1x 2.5", converted from one 3.5" drive bay) Expansion Slots: 4 (Low Profile) Front I/O Panel: 2x USB 3.0 Ports, 1x Microphone-In, 1x Audio-Out (supports HD Audio)