LG Electronics LG 23MP57HQ-P 23-Inch Screen LED-Lit Monitor Display Area: 23" Brightness: 250 cd/m2 Contrast Ratio: 1,000:1 (Original), 5,000,000:1 (DFC) Max Resolution: 1920 x 1080 Interface: 1x D-Sub Port, 1xHDMI Port, 1xHeadphone Out, Jack Location Mounting type: Wall Mount 3" x 3"