Technical data:
Screen type: Flat
Screen size: 27" (68 cm)
Screen type: Matte (Anti-Glare)
Display technology: LED-backlit LCD monitor / TFT active matrix
Screen resolution: 3840 x 2160 4K UHD
Aspect ratio: 16:9
Contrast ratio: 2000 : 1
Brightness: 400 cd/ m²
Response Time: 8 ms (gray-to-gray normal); 5 ms (gray-to-gray fast)
Refresh rate: 60 Hz
VESA mount: 100 x 100 mm

Brightness
Brightness - the amount of light emitted by a display, measured in candelas per square metre. A good brightness reading is 250 (candelas per square metre), while the Dell UltraSharp U2723QE 27 IPS 4K LED 16:9 210-BCXK has 400 cd/m2

Adjustable stand - by height and angle
By rotating, pulling or releasing the monitor handle on the monitor arm, you can adjust your Dell UltraSharp U2723QE 27 IPS 4K LED 16:9 210-BCXK monitor to your desired height and tilt angle, so you can see a high quality, glare-free image even in sunny or brightly lit conditions. This monitor is particularly useful for web design, as it allows the monitor to be mounted horizontally or vertically.

HDMI
Dell UltraSharp U2723QE 27 IPS 4K LED 16:9 210-BCXK lets you connect a projector, games console, TV tuner and other devices that deliver digital audio and video. The advantage of this output is that it delivers a high-quality picture even in high resolutions such as HD and Full HD.