Acer S221HQLDbd, S. Display diagonal: 546.1 mm (21.5 "), Response time: 5 ms, Display brightness: 250 cd/m². Input voltage: 110 - 220 V, Power consumption (standby): 0.64 W, Power consumption (typical): 21.2 W. Width: 505 mm, Depth: 145 mm, Height: 371 mm. LED indicators: Power, Stand-by, Y. Cables included: AC, VGA