HP 2309m 23 inch Diagonal Full HD LCD Monitor. Display diagonal: 58.42 cm (23"), Response time: 3 ms, Display brightness: 300 cd/m². VESA mounting interfaces: 100 x 100 mm, Tilt angle: -5 - 25°. Width: 57.3 cm, Depth: 20 cm, Height: 41.2 cm. Package dimensions (WxDxH): 650 x 171 x 490 mm, Power requirements: Internal AC adapter, Security features: Kensington lock (sold separately). Display scanning frequency: 48-76Hz vertical, 24-94kHz horizontal