ATACOM CIN-111 1U RACKMOUNT CHASSIS KEYBOARD DRAWER W/KEYBOARD (BLACK) DIMENSION (WXDXH):19 X 20 X 1.75 (INCH)/ MAX MDB SIZE:12x9.6 / DRIVE BAYS:1 X 5.25 + 1 X 3.5 (EXTERNAL) + 1 X 3.5 (INTERNAL) OR 3 X 3.5 INCH/ COOLING: 2 X 40 MM BALL BEARING FAN IN FRONT, 1 X 80MM FAN BLOWER AT FRONT OF P/S. 1U P/S WITH 2 X FANS