Description Drive Bays: 3 x 5.25"" (ext.), 1 x 3.5"" (ext.), 3 x 3.5"" (int.) Compatible with standard ATX ( 12"" x 10"" ) & full size ( 12"" x 13"" ) motherboard 2 x 8 cm ball bearing fans Optional cooling fan frame for enhancing the ventilation I/O Camp-on bar Lockable latch door Washable air vent filter.