LG Electronics 24MC57HQ-P 24-Inch Screen LED-lit Monitor Display Area: 24" (23.8" Measured Diagonally) Brightness: 250 cd/m2 Contrast Ratio: 1,000:1 (Typical),5,000,000:1 (DFC) Interface: 1x DVI Port, 1x HDMI Port, 1x Headphone Out Mounting type: Wall Mount 75mm x 75mm Refresh Rate: 75 Hz