HP S2231a 54,6 cm (21.5”) Widescreen LCD Monitor. Display diagonal: 546.1 mm (21.5 "), Response time: 5 ms, Display brightness: 300 cd/m². Number of loudspeakers: 2 pcs, RMS rated power: 2 W. Tilt angle: -5 - 15 °. Power consumption (standby): 1 W, Power consumption (typical): 50 W. Width: 517 mm, Depth: 70 mm, Height: 325 mm