Viewsonic VG2021m - 20" LCD Display, Graphic Series. Display diagonal: 508 mm (20 "), Response time: 8 ms, Display brightness: 300 cd/m². Colour of product: Black, Silver. RMS rated power: 3 W. Cable lock slot: Kensington. VESA mounting interfaces compatibility: 75 x 75 mm, Tilt angle: 5 - 20 °