Display diagonal: 21.45 Display resolution: 1920 x 1080 HD type: Full HD Native aspect ratio: 16:9 Display technology: LCD Panel type: VA Backlight type: LED Touchscreen: N Display brightness (typical): 250 Response time: 12 Anti-glare screen: Y Screen shape: Flat screen Contrast ratio (typical): 3000:1 Maximum refresh rate: 60 Viewing angle, horizontal: 178 Viewing angle, vertical: 178 Display number of colours: 16.7 million colours Response time (fast): 8 Pixel pitch: 0.249 x 0.249 Pixel density: 103 Horizontal scan range: 30 - 83 Vertical scan range: 50 - 75 Display diagonal (metric): 54.48 Surface hardness: 3H Heat dissipation: 64.79 Heat dissipation (typical): 41.36 NVIDIA G-SYNC: N AMD FreeSync: N Flicker-free technology: Y Built-in speaker(s): N Built-in camera: N Market positioning: Home Product colour: Black Front bezel colour: Black Detachable stand: Y Feet colour: Black Built-in USB hub: N VGA (D-Sub) ports quantity: 1 HDMI: N Headphone out: N AC (power) in: Y VESA mounting: Y Cable lock slot: Y Height adjustment: N Tilt adjustment: Y Tilt angle range: -5 - 21 On Screen Display (OSD): Y LED indicators: Power Energy efficiency class (SDR): D Energy efficiency class (HDR): Not available Energy consumption (HDR) per 1000 hours: 12 Power consumption (typical): 12.13 Power consumption (standby): 0.3 Power consumption (max): 19 Power consumption (off): 0.3 AC input voltage: 100 - 240 AC input frequency: 50 - 60 Power supply type: Internal Energy efficiency scale: A to G European Product Registry for Energy Labelling (EPREL) code: 1034863 Operating temperature (T-T): 0 - 40 Storage temperature (T-T): -20 - 60 Operating relative humidity (H-H): 10 - 80 Storage relative humidity (H-H): 5 - 90 Operating altitude: 0 - 5000 Non-operating altitude: 0 - 12192 Width (with stand): 504.26 Depth (with stand): 171 Height (with stand): 384.17 Weight (with stand): 2900 Width (without stand): 504.26 Depth (without stand): 49.64 Height (without stand): 295.38 Weight (without stand): 2260 Bezel width (side): 12.8 Bezel width (top): 12.8 Bezel width (bottom): 16.9 Package weight: 4010 VGA cable length: 1.5 Stand included: Y Cables included: AC,VGA Quick start guide: N Power cable length: 1.8 Sustainability certificates: ENERGY STAR,TCO Doesn't contain: PVC/BFR On/off switch: Y Heavy metals free: Hg (mercury) Compliance certificates: RoHS Dell Display Manager (DDM) compatibility: Y