LG UltraWide 34U640B-B 34" WQHD VA 144Hz FreeSync Curved Ultrawide Productivity Monitor
Product Technical Specification
| Standards / Specifications | |
| Adaptive Sync Technology (G-SYNC / FreeSync) | AMD FreeSync Premium |
| Standard / specification | HDMI 2.0, DisplayPort 1.4 |
| Colour | |
| Primary Colour | Black |
| Efficiency Class | |
| EU Energy Efficiency Class | F |
| UK Energy Efficiency Class | F |
| UK Energy Efficiency Class HDR | G |
| Speakers | |
| Speakers | No |
| Lighting | |
| Lighting / RGB | No |
| Dimensions | |
| Length / Depth | 220 mm |
| Width | 809.1 mm |
| Height | 464.4 mm |
| Width (without stand) | 809.1 mm |
| Depth (without stand) | 91.5 mm |
| Height (without stand) | 359 mm |
| Weight | 7.7 kg |
| Weight (without stand) | 5.6 kg |
| Display | |
| Display Size in Inch | 34 " |
| Display Size in cm | 86.42 cm |
| Display Resolution | UWQHD (3440 x 1440 Pixel) |
| Display Aspect Ratio | 21:9 |
| Display Refresh Rate | 144 Hz |
| Display Panel Type | VA |
| Colour depth | max. 1.07 billion colours (10 bit) |
| Colour Space (sRGB) | 99 % |
| Contrast Ratio (Static) | 4000:1 |
| Curved Display | Yes |
| Curved Display Radius | 1800R |
| Display Response Time | 5 ms |
| Display Response Time (Grey-to-Grey) | 5 ms |
| HDR | Yes |
| HDR Standard | HDR10 |
| Screen Brightness SDR / normal | 300 cd/m² |
| Viewing angle | 178° horizontal / 178° vertical |
| Display Surface Type | non-glare |
| Touchscreen | No |
| Ergonomics | |
| Height adjustment | Yes |
| Min. Adjustable Height | 0 mm |
| Max. Adjustable Height | 80 mm |
| Min. Tilt | -5 ° |
| Max. Tilt | 15 ° |
| Pivot | No |
| Power Supply | |
| Power Supply Position | External |
| Connectivity | |
| Peripheral connectors | 3.5 mm jack 3-pole, TRS (1x), USB 3.2 Typ-A (2x) |
| Compatibility | |
| Compatibility Note | Please refer to the manufacturer's compatibility information. You can find the latest overview on the manufacturer's website. |
| Mounting | |
| Vesa standard | 100 x 100 mm |
| External Ports | |
| Display Connectors | HDMI (2x), Display Port (1x), USB Type C (Display Port shared) (1x) |
| Display Connector Standards | HDMI 2.0, DisplayPort 1.4 |
| USB Hub | Yes |
Delivery Options
Economy Delivery (UK)
Business Express
LG UltraWide 34U640B-B 34" Curved Productivity Monitor – 34” display size, WQHD (3440x1440) resolution, 21:9 aspect ratio, 1800R curve, VA panel, 144Hz refresh rate, 5ms GTG response time, AMD FreeSync Premium, HDR10, 99% sRGB, DisplayPort 1.4, HDMI 2.0, USB-C with 65W power delivery, and LG Switch support.
LG UltraWide 34U640B-B 34" Curved Productivity Monitor at a Glance:
- 34” ultrawide curved monitor with WQHD (3440x1440) resolution
- VA panel with 1800R curve for enhanced immersion
- Smooth performance with 144Hz refresh rate and 5ms response time
- HDR10 and 99% sRGB facilitate vibrant, authentic colour
- AMD FreeSync Premium support
- Optimised connectivity with HMDI 2.0, DisplayPort 1.4 and USB-C with 65W power delivery
Optimised Productivity
The LG UltraWide 34U640B-B 34" Curved Productivity Monitor is great for work and content creation. The 34” ultrawide display harnesses a WQHD (3440x1440) resolution with a 21:9 aspect ratio, optimising screen real estate for side-by-side applications and sharp detail. Plus, both HDR10 and the 99% sRGB colour space ensure vibrant, authentic colour. Picture-perfect quality with seamless multitasking!
What’s more, there are HDMI 2.0, DisplayPort 1.4, and USB-C connectivity options, supporting various devices for a streamlined set-up. Better yet, the USB-C port features 65W power delivery, which is perfect for mobile devices like laptops. Power, data, and video can be supplied all by one cable!
For optimal performance, the LG UltraWide 34U640B-B 34" Curved Productivity Monitor is supported by LG Switch. This software allows access to a range of tools and settings that you can fine-tune. Adjust brightness, assign hotkeys, and even select image quality!
Immersive Gaming
In addition to this, the LG UltraWide 34U640B-B 34" Curved Productivity Monitor is engineered for immersion. With a 1800R curve, this monitor fills your vision comfortably and puts you at the heart of the action.
For smooth performance, the LG UltraWide 34U640B-B 34" Curved Productivity Monitor has a 144Hz refresh rate and 5ms response time. This ensures all images are fluid and responsive, with minimal motion blurring. To boost performance further, there is support for AMD FreeSync Premium variable refresh rate technology, which matches the display’s frame rate with your GPU output. As a result, you can game with reduced screen-tearing, ghosting, and stuttering for an immersive experience.
Clutter-Free Design
To ensure maximum desk space, the LG UltraWide 34U640B-B 34" Curved Productivity Monitor has a sleek and minimalist stand. The small footprint means you have better surface area for peripherals and accessories. What’s more, this stand enables you to adjust the tilt and height of the monitor, for the best comfort and visibility.
Specifications
Picture Quality
PPI
110
Color Depth (Number of Colors)
1.07B
Aspect Ratio
21:9
Brightness (Typical, Minimum)
(Typ.) 300 cd/m² (Min.) 240 cd/m²
Color Gamut (Typ.)
sRGB 99% (CIE1931)
Contrast Ratio
4000:1
Display Type
VA
Pixel Pitch (mm)
0.23175 x 0.23175
Refresh Rate
144Hz
Resolution
3440 x 1440
Response Time (GTG)
5ms (GtG at Faster)
Screen Size
34"
Viewing Angle
178º(R/L), 178º(U/D)
Special Features
Curvature
1800R
DTS Headphone:X
Yes
AMD FreeSync Premium
Yes
VRR
Yes
LG Switch
Yes
Auto Input Switch
Yes
Black Stabilizer
Yes
Color Weakness Mode
Yes
Crosshair
Yes
Curved
Yes
Dual Controller
Yes
Dynamic Action Sync
Yes
Factory Calibration
Yes
Flicker Safe
Yes
HDR Effect
Yes
HDR10
Yes
PBP (Picture by Picture)
Yes
PIP (Picture in Picture)
Yes
Reader Mode
Yes
Smart Energy Saving
Yes
Super Resolution+
Yes
Input/Output
USB Down-stream
Yes
DisplayPort
Yes
HDMI
Yes x 2
DisplayPort Version 1.4
Yes
HDMI Version 2.0
Yes
Headphone Out
Yes
USB Type-C
Yes
USB-C (Data Transmission)
Yes
USB-C (Power Delivery)
65 W
Stand
Display Position Adjustments
Tilt/Height
Wall Mount Size (mm)
100 x 100 mm
Power
DC Off (Max)
Less than 0.3W
Input
100~240V (50/60Hz)
Power Save/Sleep Mode (Max)
Less than 0.5W
Type
External Power(Adapter)
Dimensions/Weights
Shipping Dimensions (WxHxD)
38.8" × 18.5" × 7.4"
Shipping Weight
22.9 lbs
With Stand (WxHxD)
31.9" × 18.3" × 8.7"
With Stand Weight
17 lbs
Without Stand (WxHxD)
31.9" × 14.1" × 3.6"
Without Stand Weight
12.3 lbs
Cabinet/Accessories
USB Type-C Cable
Yes
Display Port Cable
Yes
HDMI Cable
Yes
| Standards / Specifications | |
| Adaptive Sync Technology (G-SYNC / FreeSync) | AMD FreeSync Premium |
| Standard / specification | HDMI 2.0, DisplayPort 1.4 |
| Colour | |
| Primary Colour | Black |
| Efficiency Class | |
| EU Energy Efficiency Class | F |
| UK Energy Efficiency Class | F |
| UK Energy Efficiency Class HDR | G |
| Speakers | |
| Speakers | No |
| Lighting | |
| Lighting / RGB | No |
| Dimensions | |
| Length / Depth | 220 mm |
| Width | 809.1 mm |
| Height | 464.4 mm |
| Width (without stand) | 809.1 mm |
| Depth (without stand) | 91.5 mm |
| Height (without stand) | 359 mm |
| Weight | 7.7 kg |
| Weight (without stand) | 5.6 kg |
| Display | |
| Display Size in Inch | 34 " |
| Display Size in cm | 86.42 cm |
| Display Resolution | UWQHD (3440 x 1440 Pixel) |
| Display Aspect Ratio | 21:9 |
| Display Refresh Rate | 144 Hz |
| Display Panel Type | VA |
| Colour depth | max. 1.07 billion colours (10 bit) |
| Colour Space (sRGB) | 99 % |
| Contrast Ratio (Static) | 4000:1 |
| Curved Display | Yes |
| Curved Display Radius | 1800R |
| Display Response Time | 5 ms |
| Display Response Time (Grey-to-Grey) | 5 ms |
| HDR | Yes |
| HDR Standard | HDR10 |
| Screen Brightness SDR / normal | 300 cd/m² |
| Viewing angle | 178° horizontal / 178° vertical |
| Display Surface Type | non-glare |
| Touchscreen | No |
| Ergonomics | |
| Height adjustment | Yes |
| Min. Adjustable Height | 0 mm |
| Max. Adjustable Height | 80 mm |
| Min. Tilt | -5 ° |
| Max. Tilt | 15 ° |
| Pivot | No |
| Power Supply | |
| Power Supply Position | External |
| Connectivity | |
| Peripheral connectors | 3.5 mm jack 3-pole, TRS (1x), USB 3.2 Typ-A (2x) |
| Compatibility | |
| Compatibility Note | Please refer to the manufacturer's compatibility information. You can find the latest overview on the manufacturer's website. |
| Mounting | |
| Vesa standard | 100 x 100 mm |
| External Ports | |
| Display Connectors | HDMI (2x), Display Port (1x), USB Type C (Display Port shared) (1x) |
| Display Connector Standards | HDMI 2.0, DisplayPort 1.4 |
| USB Hub | Yes |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a simple, hassle-free returns policy. If for whatever
reason you are not happy with the item purchased, you can return it to us
within 14 days of receipt for a refund. This applies to items purchased
direct through Buykingston only.
Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If
an item has been opened for inspection but shows signs of use beyond that, a
deduction may apply to reflect the reduced value — see our full
Terms & Conditions
(Section 12) for details.
Some items are excluded from our money-back guarantee unless they have developed a fault. These include:
- Headphones
- Earphones
- Custom made and designed products, such as flash memory products with
custom logos on them, e.g. USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked
items.
How do I go about returning my order?
Please contact us
via our contact page with your order number. We will provide you with an RMA
number and return instructions, including your return deadline and whether a
freepost label applies to your order.
Do I need to contact you before returning my order?
Yes, to obtain an RMA number before sending anything back.
Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we
understand you may no longer have the original packaging.
Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable
return postage, or provide a freepost label where available. If you are
returning an item for another reason (including simply changing your mind),
you are responsible for return postage unless we have expressly confirmed a
freepost label in your RMA email — we recommend using a tracked and
insured service for items of significant value.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
directly for assistance.
Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.