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Computer Peripherals
Monitor
LCD / LED Monitor
LG Electronics
Item#:
9SIAH2MKNV3851
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LG 45" 240 Hz OLED QHD Gaming Monitor 0.03ms (GtG at Faster) FreeSync Premium & G-Sync Compatible DCI-P3 98.5% (CIE1976) Curved UltraGear 45GX90SA-B
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45"
OLED QHD
240 Hz
FreeSync Premium & G-Sync Compatible
1,500,000:1
Height: 120mm Swivel: -10~10° Tilt: -1~15°
1 x DisplayPort 1.4 / 2 x HDMI 2.1 1 x USB Type-C Up-stream / 1 x USB Type-C (Data only) / 2 x USB 2.0 Type-A Downstream
USB Type-C Cable Display Port Cable HDMI Cable Remote Control
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+
Overview
Specs
Reviews
Learn more about the LG Electronics 45GX90SA-B
Model
Brand
LG
Series
UltraGear
Model
45GX90SA-B
Cabinet Color
Black
Usage
Consumer
System Spec
OS Support
webOS 24
Display
Screen Size
45"
Glare Screen
Anti-Glare, Low-Reflection of the front polarizer
Widescreen
Yes
Resolution
3440 x 1440
Refresh Rate
240 Hz
Viewing Angle
178° (H) / 178° (V)
Monitor Pixel Density
0.303mm
Brightness
275 cd/m2
Contrast Ratio
1,500,000:1
Aspect Ratio
21:9
Response Time
0.03ms (GtG at Faster)
Panel
OLED
Display Type
QHD
Color Gamut
DCI-P3 98.5% (CIE1976)
HDR Standard
HDR10
VESA Certified DisplayHDR
DisplayHDR True Black 400
Adaptive Sync Technology
FreeSync Premium & G-Sync Compatible
Curved Surface Screen
Curved
Curvature Radius
800R
Connectivity
Video Ports
1 x DisplayPort 1.4 / 2 x HDMI 2.1
USB Ports
1 x USB Type-C Up-stream / 1 x USB Type-C (Data only) / 2 x USB 2.0 Type-A Downstream
Headphone
Yes
Power
Power Supply
100 - 240 VAC, 50/60Hz
Power Consumption
Power Consumption (Typ.): 92 W
Power Save/Sleep Mode (Max): Less than 0.5W
Convenience
Stand Adjustments
Height: 120mm
Swivel: -10~10°
Tilt: -1~15°
Built-in Speakers
Yes
VESA Compatibility - Mountable
100 x 100mm
Dimensions & Weight
Dimensions (H x W x D)
21.3"-26.1" x 39.1" x 13.3" with stand
18" x 39.1" x 8.6" without stand
Weight
29.8 lbs. with stand
19.6 lbs. without stand
Packaging
Package Contents
USB Type-C Cable
Display Port Cable
HDMI Cable
Remote Control
Additional Information
First Listed on Newegg
November 29, 2025
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LG Electronics 45GX90SA-B
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Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
Return for refund within: 15 days
Return for replacement within: 30 days
This item is covered by
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