LG·Monitors·34U640B-B
34U640B-B
$399.99
About
34 Inch UltraWide™, WQHD Curved (1800R) 144Hz Monitor
Specifications
A normalized reference table for comparing monitors across brands. Some values are calculated or inferred from manufacturer data; select an info icon for context.
Overview
Availability
Available
Brand
LG
Model Name
34U640B-B
Model Number
34U640B-B
Price
$399.99
Display
Screen Size
34"
Resolution
34 Inch UltraWide™, WQHD Curved (1800R) 144Hz Monitor 3440 x 1440 (3440 × 1440)
Pixel Density
110 PPI
Retina Class
Non-Retina
Aspect Ratio
21:9
Panel Type
VA
Shape
Curved
Curvature Radius
1800R
HDR and Color
HDR Support
Yes
HDR Certification
HDR
SDR Brightness
300 nits
Contrast Ratio
4000:1
Color Depth
10-bit
sRGB
99%
Motion and Gaming
Native Refresh Rate
144Hz
Max Refresh Rate
Same as native
Response Time (GtG)
5ms
VRR
AMD FreeSync Premium
Connectivity
HDMI
2x HDMI
DisplayPort
1x DisplayPort 1.4
USB-C / Thunderbolt
1x USB-C (65W PD)
USB-C Display Input
Yes
USB-C Power Delivery
65W
USB-A Hub
1 ports
Audio Jack
3.5mm jack
KVM
No
Features
Smart Monitor
No
Speakers
No
PiP / PbP
Picture-in-Picture and Picture-by-Picture
Portable
No
Foldable
No
Ergonomics and Build
Dimensions
810 × 465 × 221mm
Weight
7.71kg
VESA Mount
100 x 100 mm
Stand Type
Tilt/Height
Power and Source
Product Source
Specs Source
Last Fetched
Jul 18, 2026
Data Confidence
95%
16 empty or not-applicable reference rows are hidden.
Data Trust
We normalize monitor specs from official product and specs pages when available. If something looks off, send a correction with the source links attached.
Available
Data Source
LG official US catalog and product page
Last Fetched
Jul 18, 2026
Status
Available
