LG 40U990A-W computer monitor 101.6 cm (40") 5120 x 2160 pixels WUHD Black

SKU
40U990A-W
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In Stock: 22 available
40 Inch UltraFine 5K2K WUHD Nano IPS Black Monitor with Thunderbolt 5 PD 96W
  • World’s first 5K2K monitor with ThunderboltTM 5 for pro-level performance
  • See sharper, work smarter—5K2K clarity for design, editing, and visual precision
  • A wide 5K2K display built for creative precision and focused workflows
  • Nano IPS Black and HDR 600 deliver deep blacks, vivid color, and contrast
  • From bold to subtle, up to 99% DCI-P3 ensures impeccable color in every project
  • 2000:1 contrast ratio delivers deeper blacks and remarkable visual depth
  • ThunderboltTM 5 powers fast, stable 5K2K production with 96W charging
  • Connect two monitors and a laptop with a clean, single-cable daisy chain setup
More Information
SKU 40U990A-W
EAN 8806096776551
Manufacturer LG
Availability In Stock
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The World’s First 5K2K Monitor with Thunderbolt™ 5

The LG UltraFine™ 40U990A is the world’s first 5K2K widescreen monitor with Thunderbolt™ 5, delivering ultra-fast data transfer, 96W charging, and dual display support. The monitor's 40” curved (2500R), Nano IPS Black panel offers brilliant color, and spectacular contrast - a new go-to display for creators, multritaskers and gamers.

5K2K Means More Pixels for More Creative Control

The 5K2K (5120x2160) Nano IPS Black display offers 33% more pixels than standard 4K UHD, delivering ultra-wide resolution, vivid color, and razor-sharp detail—creating a spacious, precise workspace ideal for video editing, graphic design, photography, and color-critical tasks.

Built for creators. Ready for professionals.

Built for creative flow, the UltraFine™ 5K2K screen makes it easy to work across complex timelines, layered interfaces, and multiple windows—ideal for editing, producing, and programming.

VESA DisplayHDR™ 600 Meets Nano IPS Black Brilliance

VESA DisplayHDR™ 600 and Nano IPS Black combine to deliver deep blacks, vivid highlights, and cinematic color—ideal for creators who need precision in light, shadow, and texture.

Up to 99% DCI-P3 Color Brilliance for Visual Pros

With up to 99% DCI-P3 color gamut coverage, this UltraFine™ display delivers bold, vibrant color across a wide spectrum—ideal for impactful video, photo, and design work in print, digital, and broadcast formats.

2000:1 Contrast for Stunning Visual Depth

Nano IPS Black enhances contrast to 2000:1, revealing richer shadows, deeper blacks, and sharper detail—perfect for bold color, improved depth, and edge-to-edge consistency.

5K2K Production Powered by Thunderbolt™ 5

Thunderbolt™ 5 supports commercial-level video, film, and game production with faster data transfer, 96W charging, and seamless 5K2K output—all through a single, stable, high-speed cable.

Daisy Chain Enhances Multitasking Efficiency

Daisy chain two monitors and a laptop via Thunderbolt™ 5 and DisplayPort—simplifying your workspace while expanding screen space for multitasking, content creation, or focused productivity

Versatile Ports for Limitless Possibilities

Thunderbolt™ 5, HDMI 2.1 (x2), DisplayPort 2.1 (UHBR 13.5) and USB-C let you connect laptops, cameras, and drives—no adapters needed. Enjoy stable, streamlined performance across creative, gaming, or professional workflows.

Dual Speakers. Deep, Immersive Sound.

Let the action surround you with dual speakers and Rich Bass—delivering deeper, fuller sound that enhances cinematic scenes.

FreeSync™ Premium Smooths Every Frame

FreeSync™ Premium keeps motion smooth and responsive, reducing screen tearing and stutter while mixing audio, gaming, or reviewing high-resolution video.

Personalized Your Display with Switch App

Easily customize image settings, split your screen into 11 layouts, and launch video calls instantly with the LG Switch App—streamlining your setup for productivity and entertainment.

Designed for Comfort and Focus

The narrow bezeled, 3-sided virtually borderless design and compact L-stand save space and reduce distractions, while tilt, height, and swivel adjustments support comfort and focus during long creative sessions.
Display
HDCPYes
Display brightness (typical)450 cd/m²
Screen shapeCurved
Display number of colours1.06 billion colours
Native aspect ratio21:9
Pixel density139 ppi
Maximum refresh rate120 Hz
HD typeWUHD
Viewing angle, horizontal178°
Viewing angle, vertical178°
Pixel pitch0.1815 x 0.1815 mm
Backlight typeEdge-Lit
Display resolution5120 x 2160 pixels
Response time5 ms
Display diagonal101.6 cm (40")
Contrast ratio (typical)2000:1
TouchscreenNo
High Dynamic Range (HDR) supportedYes
Panel typeNano IPS
DCI-P3 coverage99%
High Dynamic Range (HDR) technologyDisplayHDR 600, HDR Effect, High Dynamic Range 10 (HDR10)
Screen curvature rating2500R
Display diagonal (metric)101 cm
LED backlightYes
Colour gamut standardDCI-P3
Response time measurement typeGTG (Gray to Gray)
Audio
Built-in speaker(s)Yes
RMS rated power10 W
Performance
Built-in speaker(s)Yes
RMS rated power10 W
Built-in cameraNo
AMD FreeSync typeFreeSync Premium
AMD FreeSyncYes
NVIDIA G-SYNCNo
VESA Adaptive Sync supportNo
Brand specific technologiesBlack Stabilizer
Management features
Picture-in-PictureYes
Multimedia
Number of speakers2
Built-in speaker(s)Yes
RMS rated power10 W
Built-in cameraNo
Design
Country of originChina
Product colourBlack
Camera
Built-in cameraNo
Ports & interfaces
Built-in USB hubNo
Headphone outYes
HDMI ports quantity2
DisplayPorts quantity1
HDCPYes
Audio inputYes
HDMIYes
DisplayPort version2.1
Number of USB Type-C upstream ports quantity4
HDCP version2.2
BluetoothNo
Wi-FiNo
Ethernet LANYes
Technical details
Height (without stand)419.1 mm
Depth (without stand)106.7 mm
Width (without stand)947.4 mm
Cable lock slotNo
HDMIYes
Product colourBlack
Country of originChina
Power supply typeExternal
Weight (with stand)14.1 kg
TouchscreenNo
Network
BluetoothNo
Wi-FiNo
Ethernet LANYes
Ergonomics
Wall mountableYes
VESA mountingYes
Cable lock slotNo
Panel mounting interface100 x 100 mm
SwivellingYes
Picture-in-PictureYes
Height adjustmentYes
Tilt adjustmentYes
Picture-by-Picture (PbP)Yes
Power
Power supply typeExternal
AC input voltage100 - 240 V
AC input frequency50/60 Hz
Power consumption (standby)1.2 W
Power consumption (typical)45 W
Power consumption (off)0.3 W
Energy efficiency scaleA to G
Energy efficiency class (SDR)F
Energy efficiency class (HDR)G
Energy consumption (SDR) per 1000 hours40 kWh
Energy consumption (HDR) per 1000 hours58 kWh
Weight & dimensions
Height (without stand)419.1 mm
Depth (without stand)106.7 mm
Width (without stand)947.4 mm
Width (with stand)947.4 mm
Depth (with stand)259.1 mm
Height (with stand)614.7 mm
Weight (with stand)14.1 kg
Weight (without stand)9.21 kg
Package width1206.5 mm
Package depth200.7 mm
Package height419.1 mm
Package weight17.8 kg
Packaging data
Package width1206.5 mm
Package depth200.7 mm
Package height419.1 mm
Package weight17.8 kg
Package typeBox
Stand includedYes
Remote control includedNo
ManualYes
Cables includedDisplayPort, HDMI, Thunderbolt, USB Type-C
Power adapter includedYes
Packaging content
Stand includedYes
Remote control includedNo
ManualYes
Cables includedDisplayPort, HDMI, Thunderbolt, USB Type-C
Power adapter includedYes
Features
Country of originChina
Other features
Country of originChina
Picture-by-Picture (PbP)Yes
DCI-P3 coverage99%
Brand specific technologiesBlack Stabilizer
Height (without stand)419.1 mm
Depth (without stand)106.7 mm
Width (without stand)947.4 mm
BluetoothNo
Remote control includedNo
HDMIYes
Energy efficiency scaleA to G
Power supply typeExternal
ManualYes
Ethernet LANYes
TouchscreenNo
Package typeBox

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SKU
40U990A-W
9H.LJ1LB.QBE
CS2740
EV3895-BK
EV3895-WT
62C1GAT6EU
Manufacturer
LG
Benq
Eizo
Eizo
Eizo
Lenovo
Native aspect ratio
21:9
16:9
16:9
24:10
24:10
21:9
VESA mounting
Y
Y
Y
Y
Y
Y
NVIDIA G-SYNC
N
N
N
N
N
N/A
Built-in USB hub
N
Y
Y
Y
Y
Y
AMD FreeSync
Y
N
N
N
N
N/A
Display diagonal
30 to 50 inches
30 to 50 inches
≈ 21 inches
30 to 50 inches
30 to 50 inches
30 to 50 inches
Product colour
Black
Grey
Black
Black
White
Black
Touchscreen
N
N
N
N
N
N
Built-in camera
N
N
N
N
N
N
Market positioning
N/A
Graphics design
Photo editing
Office
Office
N/A
Display technology
N/A
LED
LCD
LCD
LCD
LED