AC input frequency Power - 50/60 Hz
AC input voltage Power - 100 - 240 V
AMD FreeSync Performance - Yes
AMD FreeSync type Performance - FreeSync Premium
Audio input Ports & interfaces - Yes
Brand specific technologies Other features - Black Stabilizer
Built-in camera Multimedia - No
Built-in speaker(s) Multimedia - Yes
Built-in USB hub Ports & interfaces - No
Cable lock slot Ergonomics - No
Cables included Packaging content - DisplayPort/HDMI/Thunderbolt/USB Type-C
Category Code - LC3
Colour gamut standard Display - DCI-P3
Contrast ratio (typical) Display - 2000:1
Country of origin Other features - China
Data Sheet (Link) Energy Efficiency - https://eprel.ec.europa.eu/api/product/2316993/fiches?language=EN
DCI-P3 coverage Display - 99 %
Depth (without stand) Weight & dimensions - 106.68 mm
Depth (with stand) Weight & dimensions - 259.08 mm
Description - 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.World’s first 5K2K monitor with Thunderbolt™ 5 for pro-level performanceSee sharper, work smarter—5K2K clarity for design, editing, and visual precisionA wide 5K2K display built for creative precision and focused workflowsNano IPS Black and HDR 600 deliver deep blacks, vivid color, and contrastFrom bold to subtle, up to 99% DCI-P3 ensures impeccable color in every project2000:1 contrast ratio delivers deeper blacks and remarkable visual depthThunderbolt™ 5 powers fast, stable 5K2K production with 96W chargingConnect two monitors and a laptop with a clean, single-cable daisy chain setup
Display brightness (typical) Display - 450 cd/m²
Display diagonal (metric) Display - 101 cm
Display diagonal Display - 40 "
Display number of colours Display - 1.06 billion colours
DisplayPorts quantity Ports & interfaces - 1
DisplayPort version Ports & interfaces - 2.1
Display resolution Display - 5120 x 2160 pixels
Energy consumption (HDR) per 1000 hours Power - 58 kWh
Energy consumption (SDR) per 1000 hours Power - 40 kWh
Energy efficiency class (HDR) Power - G
Energy efficiency class (SDR) Power - F
Energy efficiency class Energy Efficiency - F
Energy efficiency scale Power - A to G
EPREL Registration Number Energy Efficiency - 2316993
EPREL Version Number Energy Efficiency - 1
Ethernet LAN Network - Yes
HDMI Ports & interfaces - Yes
HDMI ports quantity Ports & interfaces - 2
HD type Display - WUHD
Headphone out Ports & interfaces - Yes
Height (without stand) Weight & dimensions - 419.1 mm
Height (with stand) Weight & dimensions - 614.68 mm
Height adjustment Ergonomics - Yes
High Dynamic Range (HDR) supported Display - Yes
High Dynamic Range (HDR) technology Display - DisplayHDR 600/HDR Effect/High Dynamic Range 10 (HDR10)
Maximum refresh rate Display - 120 Hz
Model - 40U990A
Native aspect ratio Display - 21:9
Number of USB Type-C upstream ports quantity Ports & interfaces - 4
NVIDIA G-SYNC Performance - No
Package depth Packaging data - 200.66 mm
Package height Packaging data - 419.1 mm
Package type Packaging data - Box
Package weight Packaging data - 17780 g
Package width Packaging data - 1206.5 mm
Panel mounting interface Ergonomics - 100 x 100 mm
Panel type Display - Nano IPS
Picture-by-Picture (PbP) Other features - Yes
Picture-in-Picture Ergonomics - Yes
Pixel density Display - 139 ppi
Pixel pitch Display - 0.1815 x 0.1815 mm
Power consumption (off) Power - 0.3 W
Power supply type Power - External
Product colour Design - Black
Product Net Weight - 14.106 kg
Response time measurement type Display - GTG (Gray to Gray)
Screen curvature rating Display - 2500R
Screen shape Display - Curved
Summary - LG 40U990A-W. Display diagonal: 101.6 cm (40"), Display resolution: 5120 x 2160 pixels, HD type: WUHD, Native aspect ratio: 21:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Built-in speaker(s). VESA mounting, Height adjustment. Product colour: Black
Swivelling Ergonomics - Yes
Tilt adjustment Ergonomics - Yes
Touchscreen Display - No
Unit Box Height - 0.2
Unit Box Length - 1.2
Unit Box Width - 0.53
Unit Calculated Volume - 0.1272 cubm
Unit Calculated Weight - 18 kg
Units per Pallet - 0
Vendor Homepage - https://www.lg.com/us/monitors/lg-40u990a-w-ultrafine-monitor
VESA mounting Ergonomics - Yes
Viewing angle, horizontal Display - 178 °
Viewing angle, vertical Display - 178 °
Warranty - 24 months
Weight (without stand) Weight & dimensions - 9207 g
Weight (with stand) Weight & dimensions - 14106 g
Width (without stand) Weight & dimensions - 947.42 mm
Width (with stand) Weight & dimensions - 947.42 mm
DVI on digitaalinen standardi ja takaa korkean kuvanlaadun, mutta pistokkeen suuren koon ja standardin kyvyttömyyden kehittyä edelleen muutamien teknisten rajoitusten vuoksi tämä liitäntätyyppi on vähitellen menettämässä suosiotaan nykyaikaisille HDMI- ja DisplayPort-standardeille. 
