Experience vibrant colour and reduced harmful blue light emissions with ComfortView Plus. Featuring an RJ45 port for Ethernet connectivity.

It’s hard to look away

Easy on the eyes: ComfortView Plus is an always-on, built-in low blue light screen that optimises eye comfort by reducing potentially harmful blue light emissions while delivering excellent colour accuracy.

Colour consistency comes standard: See consistent, vibrant colours across a wide viewing angle enabled by In-Plane Switching (IPS) technology. With 99% sRGB coverage to an accuracy of Delta-E less than 2, you get precise hues right out of the box.

See more, scroll less: Boost productivity with an extended vertical view on this 24" 16:10 WUXGA (1920 x 1200) display which provides 11% more on-screen real estate.

Your productivity hub

Connect to productivity: With connectivity options like RJ45 and USB-C®, your monitor delivers robust Ethernet and power (up to 90W)—all in a clutter-free setup.

Quick access: Conveniently placed SuperSpeed USB 5Gbps and USB-C ports located at the front of the monitor allow quick connections to storage devices, mobile phones and other peripherals while enabling up to 15W of power delivery (via USB-C).

Enhanced manageability: Managing your monitor is easy with MAC Address pass-through, PXE Boot, and Wake-on-LAN conveniently built in.

Set up for more: DP out connectivity enables a multi-monitor setup by daisy chaining up to three monitors.

A step forward in design

Beauty meets function: Masterfully crafted with a premium platinum silver finish, small base and an elegant cable management system that hides cords within the monitor riser.

Easy to use: Navigate the menu and adjust screen settings with the joystick control. We’ve also given you the option to snap on the Dell Slim Soundbar (SB521A) and enjoy exceptional sound quality.

Comfort is key: Tilt, swivel, pivot and adjust the height of your monitor to a maximum of 150mm because you should be comfortable while you work.

Expand your efficiency: Experience a seamless view across multiple monitors with the virtually borderless InfinityEdge design.

(DellU2421E-OB)

General

Display Type LED-backlit LCD monitor / TFT active matrix
Diagonal Size 24.1")
Viewable Size 24.1"
Built-in Devices USB-C hub
USB Power Delivery 90 Watt
Panel Type IPS         
Aspect Ratio 16:10
Native Resolution WUXGA 1920 x 1200 at 60 Hz
Pixel Pitch 0.27 mm
Pixel Per Inch 94          
Brightness 350 cd/m²
Contrast Ratio 1000:1
Colour Support 16.7 million colours
Response Time 8 ms (grey-to-grey normal); 5 ms (grey-to-grey fast)
Vertical Refresh Rate 49 - 76 Hz
Horizontal Refresh Rate 30 - 83 kHz
Horizontal Viewing Angle 178°
Vertical Viewing Angle 178°
Screen Coating Anti-glare, 3H Hard Coating
Backlight Technology LED backlight
Bezel Type Flat front
Features Frame Rate Control (FRC), Flicker Free technology, daisy chain compatible, 6-bit gamma, Dell Easy Arrange, Dell ComfortView Plus
Colour Black

Connectivity

Interfaces
  • DisplayPort (DisplayPort 1.4 mode)
  • HDMI
  • USB-C 3.2 Gen 1 upstream/DisplayPort 1.4 (power up to 90W)
  • USB-C 3.2 Gen 1 downstream (power up to 15W)
  • DisplayPort output (MST)
  • 2 x USB 3.2 Gen 1 downstream
  • USB 3.2 Gen 1 downstream with Battery Charging 1.2
  • Audio line-out (mini-jack)
  • Network (RJ-45)

Mechanical

Display Position Adjustments Height, pivot (rotation), swivel, tilt
Tilt Angle -5°/+21°
Swivel Angle -45°/+45°

Miscellaneous

Features Security lock slot (cable lock sold separately), VESA interface support, anti-theft stand lock slot
Compliant Standards DisplayPort 1.4, HDCP 1.4
Security Slot Type Kensington security slot

Power

Voltage Required AC 120/230 V (50/60 Hz)
SKU DellU2421E-OB
Barcode # 5397184409503
Brand Dell
Brand Dell
Type Monitor
Screen Size 24 in
Video Inputs HDMI, Display Port
Aspect Ratio 16:10
Shipping Cubic 0.018432000m3

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