Gigabyte TAC 2.0/2 x USB 2.0/1 x HD Audio/ATX/Micro ATX Case GZ-ZATBH1 Material: ABS/0.6 mm SGCC Side Panel: TAC 2.0 Drive Bay: 5.25-Inch x4 , 3.5-Inch x1 +5(internal) Expansion Slots: 7 Form Factor: ATX/Micro ATX I/O Ports: 2 x USB 2.0/1 x HD Audio Fans: 120mm silent fan x1 (rear)