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LG UltraGear OLED 45GX900A-B 44.5" 1440p HDR 240 Hz Curved Ultrawide Gaming Monitor

BH #LG45GX900AB • MFR #45GX900A-B.AUS
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LG UltraGear OLED 45GX900A-B 44.5" 1440p HDR 240 Hz Curved Ultrawide Gaming Monitor
Key Features
  • 44.5" 800R Curved 21:9 OLED Panel
  • HDMI | DisplayPort | USB-C (65W)
  • WQHD (1440p) 3440 x 1440 at 240 Hz
  • FreeSync Premium Pro | G-Sync Compatible
Catch every detail during lightning-fast competitions and action scenes with the LG UltraGear OLED 45GX900A-B 44.5" 1440p HDR 240 Hz Curved Ultrawide Gaming Monitor. Featuring an 800R curved design, this ultrawide 3440 x 1440 resolution QHD immerses you in content by enveloping your field of view, while the 240 Hz refresh rate and 0.03 ms response time delivers silky smooth visuals.
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LG 45GX900A-B Overview

Catch every detail during lightning-fast competitions and action scenes with the LG UltraGear OLED 45GX900A-B 44.5" 1440p HDR 240 Hz Curved Ultrawide Gaming Monitor. Featuring an 800R curved design, this ultrawide 3440 x 1440 resolution QHD immerses you in content by enveloping your field of view, while the 240 Hz refresh rate and 0.03 ms response time delivers silky smooth visuals.

High dynamic range support enhances visuals with realistically bright highlights and deep shadows. Connect your compatible laptop through the USB-C port to transfer video, data, and up to 65W of power over a single cable. Dual HDMI 2.1 ports are also available alongside a DisplayPort 1.4 input. Rear ambient hexagon lighting helps to enhance the mood of your environment. The limited 2-year warranty covers the OLED panel and other key components.

Take in the View
See more at a glance with an 800R curved design and 178° viewing angles.
Deep Color
Housed inside a slim frame, the 44.5" OLED panel supports 1.07 billion colors and is factory-calibrated for 98.5% DCI-P3 coverage to deliver cinematic visuals. VESA DisplayHDR True Black 400 certified HDR10 support provides a 1.5 million:1 contrast ratio with 275 nits peak brightness.
Fast Graphics
With a 240 Hz refresh rate and 0.03 ms response time, this monitor significantly reduces motion blur to deliver liquid-smooth visuals.
AMD FreeSync Premium Pro and NVIDIA G-Sync
Reduce screen tearing with AMD's FreeSync Premium Pro technology and NVIDIA G-Sync compatibility. Both enable the monitor to dynamically adjust its refresh rate to the frame rate being output by the graphics card, thereby greatly reducing screen tearing, stuttering, and other artifacts.
USB Hub
A two-port USB 3.2 Gen 1 hub allows you to attach peripherals such as mice, keyboards, and up to 5 Gb/s compatible flash drives through the monitor.
Ergonomic Design
Adjust the height, tilt, and swivel to fit your comfort. You can also use the 100 x 100mm VESA pattern to mount the display onto a wall, swivel arm, or multi-monitor stand.
UPC: 195174124062

LG 45GX900A-B Specs

Key Specs
Display Size
44.5"
Panel Type
OLED
Native Resolution
3440 x 1440
Maximum Brightness
275 nits / cd/m2
HDR Support
Yes: HDR10
Color Support
1.07 Billion Colors
Color Gamut
98.5% DCI-P3
Finish
Anti-Glare
Touchscreen
No
A/V Inputs
DisplayPort 1.4 / HDMI 2.1
A/V Outputs
3.5 mm (Analog Audio)
USB I/O
USB-A 3.2 Gen 1 / USB-C 3.2 Gen 1
Built-In Speakers
Yes
Display
Size
44.5"
Panel Type
OLED
Aspect Ratio
21:9
Native Resolution
3440 x 1440
Maximum Brightness
275 nits / cd/m2
HDR Support
Yes: HDR10
Contrast Ratio
Near Infinite (Black Pixels Emit No Light)
Response Time
0.03 ms
Refresh Rate
240 Hz
Variable Refresh Technology
Adaptive-Sync, FreeSync, FreeSync Premium Pro, G-Sync, Variable Refresh Rate (VRR)
Color Support
1.07 Billion Colors
Color Gamut
98.5% DCI-P3
Viewing Angle (H x V)
178 x 178°
Curved Display
Yes: 800R
Finish
Anti-Glare
Surface
Touchscreen
No
Connectivity
A/V Inputs
1x DisplayPort 1.4
2x HDMI 2.1
A/V Outputs
1x 1/8" / 3.5 mm (Headphone)
HDCP Support
Yes
USB I/O
1x USB-C 3.0 / 3.1/3.2 Gen 1 with USB PD 65 W
2x USB-A 3.0 / 3.1/3.2 Gen 1
Multi-Input Support (PIP/PBP)
Yes: Picture-in-Picture (PIP), Picture-by-Picture (PBP)
Speaker
Built-In Speakers
Yes
Electrical
Input Power
100 to 240 VAC, 50 / 60 Hz
Power Adapter Type
External
General
Adjustments
Tilt
Swivel
Height
VESA Mounting-Hole Pattern
100 x 100 mm
Lock Slot
No
Dimensions
39.1 x 26.1 x 13.3" / 99.3 x 66.3 x 33.8 cm
Weight
29.8 lb / 13.5 kg (with Stand)
19.6 lb / 8.9 kg (without Stand)
Packaging Info
Package Weight
41 lb
Box Dimensions (LxWxH)
45 x 21.5 x 12"

LG 45GX900A-B Reviews

See any errors on this page?

Will this be a glass screen? Gloss finish on the ...

Will this be a glass screen? Gloss finish on the screen?
Asked by: Paul
The LG 45" UltraGear OLED WQHD 240 Hz 0.03 ms G-Sync Compatible 800R Curved Gaming Monitor, B&H # LG45GX900AB, has an anti-glare surface coating.
Answered by: Miguel M
Date published: 2025-12-02
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