ABKONCORE K12 FRONT : 12CM X 2 (OPTIONAL) TOP : 12CM X 1 (OPTIONAL) REAR : 12CM X 1 (INCLUDED AUTO RING FAN) SIDE ACRYLIC DARK VGA UP TO 340MM / 370MM 443 x 195 x 445 MM DUST FILTER 1 TOP 1 BOTTOM 3.5\X2 , 2.5\X3 USB3 X1 + USB2 X 2 + HD AUDIO ATX, M-ATX