LG UltraWide 34U640B-B
LED monitor | curved | 34" | 3440 x 1440 WQHD @ 144 Hz | VA | 300 cd/m² | 4000:1 | HDR10 | 5 ms | 2xHDMI, DisplayPort, USB-C
Main Specification
| Product Description | LG UltraWide 34U640B-B - LED monitor - curved - 34" - HDR |
|---|---|
| Device Type | LED-backlit LCD monitor - 34" |
| Energy Label QR Code URL | Https://eprel.ec.europa.eu/qr/2570485 |
| Energy Class | Class F |
| Curved Screen | Yes |
| Adaptive-Sync Technology | AMD FreeSync Premium |
| Features | USB 3.2 Gen 1/USB-C hub, USB PD 65 watt |
| Panel Type | VA |
| Aspect Ratio | 21:9 |
| Native Resolution | WQHD 3440 x 1440 at 144 Hz |
| Pixel Pitch | 0.23175 mm |
| Brightness | 300 cd/m² |
| Contrast Ratio | 4000:1 |
| HDR Capable | HDR10 |
| Response Time | 5 ms (grey-to-grey) |
| Colour Support | 1.07 billion colours |
| Colour Gamut | 99% sRGB (CIE 1931) |
| Input Connectors | 2xHDMI, DisplayPort, USB-C |
| Display Position Adjustments | Tilt, height |
| Voltage | AC 100-240 V (50/60 Hz) |
| Dimensions (WxDxH) - with stand | 80.91 cm x 22 cm x 46.44 cm |
| Weight | 7.7 kg |
| Manufacturer Warranty | 2-year warranty |
General
| Display Type | LED-backlit LCD monitor / TFT active matrix |
|---|---|
| Energy Label QR Code URL | Https://eprel.ec.europa.eu/qr/2570485 |
| Energy Class | Class F |
| Energy Class (HDR) | Class G |
| Diagonal Size | 34" |
| Curved Screen | Yes (1800R) |
| Adaptive-Sync Technology | AMD FreeSync Premium |
| Built-in Devices | USB 3.2 Gen 1/USB-C hub |
| USB Power Delivery | 65 watt |
| Panel Type | VA |
| Aspect Ratio | 21:9 |
| Native Resolution | WQHD 3440 x 1440 at 144 Hz |
| Pixel Pitch | 0.23175 mm |
| Pixel Per Inch | 110 |
| Brightness | 300 cd/m² |
| Contrast Ratio | 4000:1 |
| HDR Format | HDR10 |
| Colour Support | 1.07 billion colours |
| Colour Gamut | 99% sRGB (CIE 1931) |
| Response Time | 5 ms (grey-to-grey) |
| Horizontal Viewing Angle | 178 |
| Vertical Viewing Angle | 178 |
| Backlight Technology | LED backlight |
| Features | HDR Effect, Factory Calibration, Flicker Safe, Reader Mode, Color Weakness Mode, Super Resolution+, auto input switch, picture by picture, Picture-in-Picture, Smart Energy Saving technology, DAS Mode (Dynamic Action Sync), Crosshair Display, Black Stabilizer, Variable refresh rate (VRR), 3-side virtually borderless design |
| Dimensions (WxDxH) | 80.91 cm x 22 cm x 46.44 cm - with stand |
| Weight | 7.7 kg |
Connectivity
| Interfaces | 2 x HDMI (HDCP 2.2) DisplayPort 1.4 (HDCP 2.2) Headphone jack (mini-jack) USB-C upstream (power up to 65W) 2 x USB 3.2 Gen 1 downstream (Type A) |
|---|
Mechanical
| Display Position Adjustments | Tilt, height |
|---|---|
| VESA Mounting Interface | 100 x 100 mm |
Miscellaneous
| Features | Security lock slot (cable lock sold separately) |
|---|---|
| Cables Included | 1 x HDMI cable 1 x DisplayPort cable 1 x USB-C cable |
| Security Slot Type | Kensington security slot |
Power
| Input Voltage | AC 100-240 V (50/60 Hz) |
|---|---|
| Power Consumption SDR (On mode) | 30 kWh/1000h |
| Power Consumption HDR (On mode) | 39 kWh/1000h |
| Power Consumption (Typical) | 45 watt |
| Power Consumption Stand by | 0.5 watt |
| Power Consumption (Off Mode) | 0.3 watt |
Software / System Requirements
| Included Software | LG Switch, Dual Controller Software |
|---|
Dimensions & Weight
| Dimensions & Weight Details | With stand - width: 80.91 cm - depth: 22 cm - height: 46.44 cm - weight: 7.7 kg Without stand - width: 80.91 cm - depth: 9.15 cm - height: 35.9 cm - weight: 5.6 kg |
|---|
Dimensions & Weight (Shipping)
| Shipping Width | 98.6 cm |
|---|---|
| Shipping Depth | 18.8 cm |
| Shipping Height | 47 cm |
| Shipping Weight | 10.4 kg |
Manufacturer Warranty
| Service & Support | Limited warranty - 2 years |
|---|
Product features
Immersive curved design
The 34-inch curved screen with a 1800R curvature provides an immersive viewing experience, allowing users to dive deeper into their content whether gaming or watching movies.Vivid color accuracy
With support for 1.07 billion colors and a 99% sRGB color gamut, the monitor ensures that images are vibrant and true to life, making it ideal for graphic designers and video editors.High refresh rate and quick response
The 144 Hz refresh rate combined with a 5 ms response time enhances gameplay by reducing motion blur and providing a smoother, more responsive experience.Variety of connectivity options
Equipped with HDMI, DisplayPort, and USB-C outputs, this monitor facilitates easy connection with multiple devices, making it versatile for different setups.Energy-efficient performance
With a Class F energy rating and low power consumption in standby and off modes, this monitor is designed to be cost-effective, conserving energy without sacrificing performance.Key selling points
- 34-inch curved display for immersive visuals
- 3440 x 1440 native resolution providing crisp clarity
- 144 Hz refresh rate for smooth gaming and video playback
- Built-in USB hub with 65-watt power delivery
- Multiple gaming features including Black Stabilizer and FreeSync
References
MPN: 34U640B-B.AEK
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25/06/2026 15:27:58