Acer V223HQVb. Display diagonal: 546.1 mm (21.5 "), Response time: 5 ms, Display brightness: 300 cd/m². VESA mounting interfaces compatibility: 100 x 100 mm. Power consumption (standby): 079 W, Power consumption (typical): 30 W, Power consumption (off): 0.67 W. Width: 508 mm, Depth: 195 mm, Height: 372 mm