21.5” Full HD monitor with 1ms (GTG) quick response time to eliminate ghosting and tracers for more fluid video playback ASUS-exclusive GamePlus provides Crosshair and Timer function for better gaming experience The TÜV Rheinland-certified ASUS Flicker-Free and Low Blue Light technologies Robust connectivity including DVI-D and D-sub ports.Display Panel Size: Wide Screen 21.5"(54.6cm) 16:9 True Resolution : 1920x1080 Display Surface Non-glare Pixel Pitch : 0.248mm Brightness(Max) : 200 cd/㎡ ASUS Smart Contrast Ratio (ASCR) : 100000000:1 Viewing Angle (CR≧10) : 90°(H)/65°(V) Response Time : 1ms (Gray to Gray) Display Colors : 16.7M Flicker free Video Feature Trace Free Technology : Yes SPLENDID Video Preset Modes : 8 Modes (sRGB Mode/Scenery Mode/Theater Mode/Standard Mode/Night View Mode/Game Mode/Reading Mode/Darkroom Mode) Skin-Tone Selection : 3 Modes Color Temperature Selection : 4 Modes QuickFit (modes) : Yes (Alignment Grid/Photo Modes) GamePlus(modes) : Yes (Crosshair/Timer) Low Blue Light : Yes HDCP support : Yes VividPixel : Yes Smart View Technology : Yes Convenient Hotkey Auto. Adjustment Blue Light Filter Brightness Adjustment I/O Ports Signal Input : D-Sub, DVI-D Signal Frequency Analog Signal Frequency : 30~83 KHz(H)/ 50~75 Hz(V) Digital Signal Frequency : 30~83 KHz(H)/ 50~75 Hz(V) Power Consumption Power On : <21.1W (Based on EnergyStar 6.0) Power Saving/Off : <0.5W 100-240V, 50/60Hz Mechanical Design Chassis Colors : Black Tilt : +20°~-5° VESA Wall Mounting : 100x100mm Security Kensington lock