Built for creators.
Designed for multitaskers.
Ready for professionals.
The LG 40" UltraFine 40U990A is a 5K2K, Nano IPS Black monitor built for those who demand more—more clarity, more connectivity, and more control. This UltraFine Monitor is The World's First 5K2K Monitor with ThunderBolt 5 and with a wide, curved, 21:9 aspect ratio and 5120 x 2160 resolution, this UltraFine perfect for video editors, content creators, and multitaskers who need expansive screen space to manage timelines, layers, and multiple app windows open at once.
Nano IPS Black technology delivers incredibly deep blacks and vibrant colors, while the up to 99% DCI-P3 coverage and DisplayHDR 600 certification ensure vibrant, vivid, high-dynamic visuals. Whether you're color grading footage or designing digital content, every detail is impeccably displayed.
Thunderbolt 5 with 96W charging simplifies your setup, supporting high-speed data, display, and power over one cable. LG Switch, Dual Controller, and a built-in KVM make working across devices seamless. Add built-in speakers, auto brightness, ergonomic adjustments, and certified TUV 5-Star Eye Comfort, and you've got a display built to elevate everything you do.
With a 120Hz refresh rate and AMD FreeSync Premium Pro, the monitor also delivers smooth, tear-free gameplay—ideal for creators who also find time to game. Built-in gaming features like FPS counter, Black Stabilizer, and Crosshair give you a competitive edge.
¹As of August 2025: https://shorturl.at/zneff
²To work properly, the Thunderbolt 5 cable included in this package is required to connect the Thunderbolt 5 port to the monitor.
³To access all features including 96W charging and 5120×2160 @120Hz output, your device must support Thunderbolt 5 or DisplayPort 2.1.
⁴DP, HDMI, USB-C and Thunderbolt cables are included in the package.
⁵Second monitor available separately. DPx1, HDMIx1, USB-Cx1, Power cordx1 and Thunderboltx1 cables are included.
⁶To download the latest version of the LG Switch app, visit LG.com

