LG 40U990A-W computer monitor 100.8 cm (39.7") 5120 x 2160 pixels WUHD LCD Black
KEY FEATURES
- World’s first 5K2K monitor with Thunderbolt™ 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
- Thunderbolt™ 5 powers fast, stable 5K2K production with 96W charging
- Connect two monitors and a laptop with a clean, single-cable daisy chain setup
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Frequently Asked Questions
LG 40U990A-W computer monitor 100.8 cm (39.7") 5120 x 2160 pixels WUHD LCD Black
Description
LG 40U990A-W. Display diagonal: 100.8 cm (39.7"), Display resolution: 5120 x 2160 pixels, HD type: WUHD, Display technology: LCD, Native aspect ratio: 21:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Built-in speaker(s). VESA mounting, Height adjustment. Product colour: Black
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.
Feature
Easy 14 days Returns
Eligible for Next day Delivery
100% Money-back guarantee
Reliable Customer Support
Secure payment method
Shipping Information
- Next Business Day: £6.99
- 2 days Delivery: £4.99
- 3- 5 Days Shipping: £3.99
- Orders Over £99.00: Free Standard Delivery
| Display | |
|---|---|
| Display diagonal | 100.8 cm (39.7") |
| Display resolution | 5120 x 2160 pixels |
| Native aspect ratio | 21:9 |
| Panel type | Nano IPS |
| Response time measurement type | GTG (Gray to Gray) |
| LED backlight | Yes |
| Display brightness | 400 cd/m² |
| Display brightness (typical) | 450 cd/m² |
| Display brightness (min) | 320 cd/m² |
| HD type | WUHD |
| Backlight type | Edge-Lit |
| Display technology | LCD |
| Screen shape | Curved |
| Screen curvature rating | 2500R |
| Aspect ratio | 32:9 |
| Contrast ratio (typical) | 2000:1 |
| Maximum refresh rate | 120 Hz |
| Viewing angle, horizontal | 178° |
| Viewing angle, vertical | 178° |
| Display number of colours | 1.06 billion colours |
| 3D | No |
| Response time (fast) | 5 ms |
| Pixel density | 139 ppi |
| Pixel pitch | 0.1815 x 0.1815 mm |
| Display diagonal (metric) | 101 cm |
| High Dynamic Range (HDR) technology | DisplayHDR 600, HDR Effect, High Dynamic Range 10 (HDR10) |
| High Dynamic Range (HDR) supported | Yes |
| Colour gamut standard | DCI-P3 |
| Colour gamut | 99% |
| Performance | |
|---|---|
| NVIDIA G-SYNC | No |
| AMD FreeSync | Yes |
| AMD FreeSync type | FreeSync Premium |
| Brand specific technologies | Black Stabilizer |
| Low input lag | No |
| FPS counter | No |
| Multimedia | |
|---|---|
| Built-in speaker(s) | Yes |
| Built-in camera | No |
| Multiroom | No |
| Number of speakers | 2 |
| RMS rated power | 20 W |
| Built-in microphone | No |
| Adaptive Sound Pro | No |
| Audio Return Channel (ARC) | No |
| Design | |
|---|---|
| Market positioning | Professional |
| Product colour | Black |
| Refurbished | No |
| Country of origin | China |
| Ports & interfaces | |
|---|---|
| Built-in USB hub | No |
| USB upstream port type | USB Type-C |
| Number of USB Type-C upstream ports quantity | 1 |
| USB Type-C downstream ports quantity | 4 |
| USB required | No |
| HDMI | Yes |
| HDMI ports quantity | 2 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 1 |
| DisplayPort version | 2.1 |
| Headphone out | Yes |
| Built-in KVM switch | Yes |
| HDCP | Yes |
| HDCP version | 2.2 |
| Charging port type | USB Type-C |
| Ergonomics | |
|---|---|
| VESA mounting | Yes |
| Panel mounting interface | 100 x 100 mm |
| Wall mountable | Yes |
| Cable lock slot | No |
| Height adjustment | Yes |
| Swivelling | Yes |
| Picture-in-Picture | Yes |
| On Screen Display (OSD) | No |
| Tilt adjustment | Yes |
| Plug and Play | Yes |
| Packaging content | |
|---|---|
| Swivel arm | No |
| Installation CD | No |
| Power | |
|---|---|
| Energy efficiency class (SDR) | F |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 45 kWh |
| attribute_product_family_name | 58 kWh |
| Power consumption (typical) | 40 W |
| Power consumption (standby) | 1.2 W |
| Power consumption (off) | 0.3 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| Power supply type | Internal |
| Energy efficiency scale | A to G |
| Network | |
|---|---|
| Bluetooth | No |
| Weight & dimensions | |
|---|---|
| Width (with stand) | 947.4 mm |
| Depth (with stand) | 259.1 mm |
| Height (with stand) | 614.7 mm |
| Weight (with stand) | 14.1 kg |
| Width (without stand) | 947.4 mm |
| Depth (without stand) | 106.7 mm |
| Height (without stand) | 419.1 mm |
| Weight (without stand) | 9.21 kg |
| Packaging data | |
|---|---|
| Stand included | Yes |
| Cables included | DisplayPort, HDMI, Thunderbolt, USB Type-C |
| Power adapter included | Yes |
| Quick start guide | Yes |
| Remote control included | No |
| Remote control batteries included | No |
| Package width | 1206.5 mm |
| Package depth | 200.7 mm |
| Package height | 419.1 mm |
| Package weight | 17.8 kg |
| Package type | Box |
| Other features | |
|---|---|
| DCI-P3 coverage | 99% |
| Picture-by-Picture (PbP) | Yes |
| Touchscreen | No |
| Manual | Yes |
| Ethernet LAN | Yes |
| Supplied AC adapter type | 144, - |
Frequently Asked Questions
When will it arrive?
Any order over £99 wil be shipped on our free 2-3 working day service, if you opt for Next Working Day shipping then this will be with you the next working day between 09:00 and 18:00. Deliveries to Northern Ireland, Channel Islands and the Scottish Highlands will be on a 3 day service.
Do you offer a credit account?
We offer credit accounts to Gotraka Business customers, please enquire with our customer support team for more information. Credits accounts are subject to KYC.
How long is the returns policy?
For most products bought online, you have a legal right to change your mind within 14 days and receive a refund. If you wish to return unwanted products, you must let us know that you want to return them within 14 calendar days from the day after delivery. The item must also be returned to us within 7 working days from approval of return and receipt of the return label.
How long will it take to receive my order?
This is something that we are working hard to bring to you - we recognise that having deliveries on preferred days not only makes it easier for you but it is also great for the environment. By having deliveries arranged on days that you are going to be in or consolidating your orders to arrive to you at the same time means that the courier won't need to come back multiple times due to missed deliveries or multiple deliveries.
Can I change my delivery address once the order has been placed?
Our systems are highly automated, where possible we will do our utmost to accommodate this. To ensure we maintain a high delivery success rate most of our orders are picked and prepped for shipment within 30 minutes
How do I return my order?
If you need to return your order please raise a return through your order page detailing the reason for return. Once this form has been submitted it will be reviewed by the Returns Department who will contact you to arrange the return.
Please note the returns department may ask for more information such as the serial number(s) and images where applicable to process the return.
How long do I have to return an item?
For most products bought online, you have a legal right to change your mind within 14 days and receive a refund. If you wish to return unwanted products, you must let us know that you want to return them within 14 calendar days from the day after delivery. The item must also be returned to us within 7 working days from approval of return and receipt of the return label
Are returns free?
Returns for faulty / damaged items will be free of charge
Returns for unwanted items that have no fault will incur a minimal returns fee - delivery charges will not be refunded
Can’t find what you’re looking for?
Our friendly support team is just a message away, ready to assist with anything. Our team is experienced with gaming gear, home tech, and everything in between—feel free to reach out.
📧 Email: help@gotraka.com
📞 Phone: 020 8208 1234
💬 Live Chat: Available 9 AM – 6 PM ( Monday - Friday )
