Thermaltake Versa H21 Window SPCC ATX Mid Tower Computer Chassis CA-1B2-00M1WN-00 Case Type: Mid Tower Material: SPCC External Bay: 3x 5.25" Internal Bay: 3x 3.5" or 2.5", 3x 2.5" Expansion Slots: 7 Front I/O Panel: 1x USB 3.0 Port, 1x USB 2.0 Port, 1x HD Audio