LG UltraGear 39GX900A 39 " (39GX900A-B)

Name: LG UltraGear 39GX900A 39 " 39GX900A-B
Brand: LG

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LG UltraGear 39GX900A 39 "

34 "39 "

2025 UltraGear (gaming)gaming WOLED HDMI 2.1 curved HDR Adaptive-Sync FreeSync speakers Power Delivery good DCI-P3

Screen size:39 "

Resolution:3440x1440 (21:9)

Panel:WOLED, response 0.03 ms

Frequency:240 Hz

Contrast:1 500 000:1

Brightness:275 cd/m²

Functions:HDR, AMD FreeSync Premium Pro, NVIDIA G-Sync Compatible, VESA Adaptive-Sync, PBP, Flicker-Free

Connectors:USB-C (DP Alt Mode) • DisplayPort v1.4 • 2xHDMI v2.1

All specifications

Specifications UltraGear 39GX900A

Colour

Product type	gaming
Size	39 "


Screen
Curved screen	800R
Panel type	WOLED
Surface treatment	anti-glare
Resolution	3440x1440 (21:9)
FPS	240 Hz
Pixel size	0.27 mm
Response time (GtG)	0.03 ms
Vertical viewing angle	178 °
Horizontal viewing angle	178 °
Brightness	275 cd/m²
Static contrast	1 500 000:1
Colour depth	10-bit (1.07B Colors)
Colour gamut (DCI-P3)	98.5 %
HDR	DisplayHDR True Black 400


Connection
Video transmission	DisplayPort v1.4 2xHDMI v2.1 USB-C (DP Alt Mode)
Power Delivery
Power PD	65 W
USB-A hub	2x5Gbps
Connectors (optional)	mini-Jack output (3.5 mm) / sound + microphone /

Features
Features	PBP (Picture by Picture) Flicker-Free AMD FreeSync Premium Pro NVIDIA G-Sync Compatible Adaptive-Sync
Screen swivel
Height adjustment
Speakers
Sound power	2x7 W
Game Features	aim FPS display brighten darker areas / Black Stabilizer /


General
RGB lighting	LG Unity Hexagon Lighting
Wall mount	VESA 100x100mm
External power supply
Dimensions (WxHxD)	888x606x323 mm
Dimensions without stand (WxHxD)	888x404x198 mm
Weight	11.45 kg
Weight without stand	7.3 kg
Official Website	lg.com
Added to E-Catalog	September 2025
P/N	39GX900A-B

E-Catalog UK editor, Monitors

Dmytro Prokopenko, edited 19.08.2026

The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog LG 2026 - new arrivals, bestsellers, and the most relevant models LG.

How to Choose a Gaming MonitorWe understand matrix types, suitable resolution, FreeSync and other important aspects when choosing a gaming monitor

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