HP Genuine L1750 17" LCD Monitor Regularscreen 17-inch diagonal Active Matrix TFT (thin film transistor) Max Resolution: 1280 x 1024 @ 75 Hz) Input: VGA D-sub and DVI-D Viewing: 160 horizontal/160 vertical (10:1 minimum contrast ratio) Frequency: 24 to 83 kHz horizontal; 50 to 77 Hz vertical