Dust Filters Bottom / Top Internal 3.5" Drive Bays 2Internal 2.5" Drive Bays 1Motherboard Compatibility Micro ATX / Micro ATX (Back Connect) / Mini ITXFront Ports 1 x Headphone1 x Microphone2 x USB 3.2 Gen1Expansion Slots 5Fan Options Front: 3 x 120 mm / 2 x 140 mmTop: 3 x 120 mm / 2 x 140 mmRear: 1 x 120 mmModel A21Brand ASUSType Micro ATXColor BlackCase Material Steel / Plastic / Tempered Glass