Display diagonal
Size of the display for this product, measured diagonally, usually in inches.
100.8 cm (39.7")
Display brightness (typical)
Display brightness, measured by its Luminance, presented as a figure in candela per square meter (cd/m2). Typical brightness ratings for monitors range from 250 to 350 cd/m2 with a target value of between 80 to 120 cd/m2 being suitable for most displays in a normal viewing environment.
300 cd/m²
Display resolution
The number of distinct pixels in each dimension that can be displayed. It is usually quoted as width × height, with the units in pixels: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels. The higher the number of pixels, the sharper the image.
5120 x 2160 pixels
Native aspect ratio
The aspect ratio is the ratio of the width of an image to its height. The native aspect ratio is the one which the projector/display is particularly designed for. Images shown in native aspect ratio will utilize the entire resolution of the display and achieve maximum brightness. Images shown in other than native aspect ratio will always have less resolution and less brightness than images shown in native aspect ratio.
21:9
Response time
The response time is the time difference between the moment that a source (for example a video card) sends a signal and that equipment (for example a monitor) receives or display the signal. (Used abbreviations: R/F = Rise and Fall.)
8 ms
Display technology
The technology used in the display e.g. plasma, LED.
LCD
Backlight type
LED
Anti-glare screen
Always gives an optimal view, even in direct sunlight.
Screen shape
Curved
Screen curvature rating
2500R
Supported graphics resolutions
The graphic resolutions that can be displayed by the device. The graphic resolution describes the width and height dimensions of a display, such as a computer monitor, measured in pixels.
640 x 480 (VGA),720 x 400,800 x 600 (SVGA),1024 x 768 (XGA),1152 x 864 (XGA+),1280 x 800 (WXGA),1600 x 1200 (UXGA),1680 x 1050 (WSXGA+),1920 x 1080 (HD 1080),2048 x 1152,2560 x 1080,3840 x 2160,4096 x 2160,5120 x 2160
Supported video modes
The video modes that can be displayed by the device.
480p,720p,1080i,1080p
Contrast ratio (typical)
The difference in light intensity between the brightest white and the darkest black.
1000:1
Maximum refresh rate
60 Hz
Viewing angle, horizontal
Maximum horizontal angle at which a display can be viewed with acceptable visual performance.
178°
Viewing angle, vertical
Maximum vertical angle at which a display can be viewed with acceptable visual performance.
178°
Display number of colours
1.073 billion colours
Panel type
IPS
Response time (fast)
5 ms
Pixel pitch
This is the parameter of a picture tube, which specifies the shortest distance between two dots of the same colour. The principle is: the smaller the dot pitch, the better sharpness of image.
0.1815 x 0.1815 mm
Pixel density
140 ppi
Horizontal scan range
27 - 133.286 kHz
Vertical scan range
24 - 86 Hz
Viewable size, horizontal
The viewable size is often somewhat smaller than the actual size of a monitor, because there is a border around the image.
92.9 cm
Viewable size, vertical
39.2 cm
Viewable size diagonal
100.9 cm
RGB colour space
DCI-P3
Colour gamut
98%
Performance
NVIDIA G-SYNC
AMD FreeSync
The product includes AMD Freesync Technology for the dynamic synchronization of the graphic card and the monitor in order to avoid screen tearing.
Multimedia
Built-in speaker(s)
The device contains speaker(s) to produce sound.
Number of speakers
The quantity of speakers included in/with the product.
2
RMS rated power
RMS (Root mean square) is a measure of the continuous power required by a device, in particular audio amplifiers and loudspeakers.
18 W
Built-in camera
The product has an integrated camera.
Design
Market positioning
Under which category can the device be positioned in the market, e.g. camera phone.
Graphics design
Product colour
The colour e.g. red, blue, green, black, white.
Black, Silver
Feet colour
The colour of the feet, which are the projecting part on which a device/piece of furniture, or each of its legs, stands.
Silver
Ports & interfaces
Built-in USB hub
Whether or not the device features a USB hub to connect more than one other device via USB.
USB upstream port type
USB Type-B
Number of upstream ports
1
Number of USB Type-B upstream ports quantity
1
USB Type-A downstream ports quantity
4
USB Type-C downstream ports quantity
1
USB Power Delivery up to
90 W
DVI port
Digital Visual Interface (DVI) is a video display interface to connect a video source to a display device, such as a computer monitor.
HDMI
HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
HDMI ports quantity
The number of sockets (ports) for HDMI connections. HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.
2
HDMI version
2.0
DisplayPorts quantity
Number of DisplayPorts. A DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to carry audio, USB, and other forms of data.
1
DisplayPort version
1.4
Thunderbolt 3 ports quantity
1
Audio input
The type of audio input that the device requires, and the connection needed.
Headphone out
The socket for connecting headphones to the device.
Headphone outputs
Number of sockets /ports where headphones are connected.
1
Headphone connectivity
How headphones connect to a device e.g. wirelessly or via a cable and connector.
3.5 mm
Ergonomics
Cable lock slot
Holes on the edge of devices through which a cable lock can be passed, so the device can be locked to a desk etc.
VESA mounting
Height adjustment
12 cm
Swivelling
Swivel angle range
-30 - 30°
Tiltable
Tilt angle range
-5 - 21°
Power
Energy efficiency class (SDR)
G
Energy consumption (SDR) per 1000 hours
41 kWh
Power consumption (typical)
Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
41.3 W
Power consumption (standby)
The amount of electricity that is consumed when the product is on standby.
0.3 W
Power consumption (max)
The maximum amount of power used by the device.
240 W
Power consumption (off)
0.3 W
Power consumption (PowerSave)
44.81 W
AC input voltage
The voltage of the AC electricity that is inputted into the product.
100 - 240 V
AC input frequency
50/60 Hz
Input current
2.8 A
Energy efficiency scale
A to G
Operational conditions
Operating temperature (T-T)
The minimum and maximum temperatures at which the product can be safely operated.
0 - 40 °C
Storage temperature (T-T)
The minimum and maximum temperatures at which the product can be safely stored.
-20 - 60 °C
Operating relative humidity (H-H)
10 - 80%
Storage relative humidity (H-H)
5 - 90%
Weight & dimensions
Width (with stand)
946.6 mm
Depth (with stand)
248 mm
Height (with stand)
577.3 mm
Weight (with stand)
13.8 kg
Width (without stand)
94.7 cm
Depth (without stand)
5.96 cm
Height (without stand)
41.9 cm
Weight (without stand)
9.5 kg
Bezel width (side)
1.13 cm
Bezel width (top)
1.13 cm
Bezel width (bottom)
1.58 cm
Packaging data
Package weight
Weight of the packaged product.
21.6 kg
Other features
RJ-45 ports quantity
1
More Information
SKU
511685
MPN
U4021QW
Brand
Dell
Product Condition
Brand New/Unused
Screen Size (Inches)
39.70 Inch
Refresh Rate (Hz)
60Hz
Screen Resolution
5120x2160 (UW5K)
Input
DisplayPort / DP, HDMI, Thunderbolt 3
Stock Availability
Available for Shipping, In Stock at Castle Hill
Product Use
Business
Product Features
Curved
Warranty Period
3 Years Advanced Exchange Service and Hardware Warranty
