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MSI MAG 321UPX QD-OLED 31.5" 4K HDR 240 Hz Gaming Monitor

BH #MSM321UPXQDO • MFR #MAG 321UPX QD-OLED
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MSI MAG 321UPX QD-OLED 31.5" 4K HDR 240 Hz Gaming Monitor
Key Features
  • 31.5" 16:9 OLED Panel
  • HDMI | DisplayPort | USB-C (15W)
  • UHD 4K 3840 x 2160 at 240 Hz
  • Adaptive-Sync
Immerse yourself in rich visuals during fast-paced matches with the MAG 321UPX QD-OLED 31.5" 4K HDR 240 Hz Gaming Monitor from MSI. Featuring a 240 Hz refresh rate and 0.03 ms response time with adaptive-sync support, this UHD 4K 3840 x 2160 OLED display minimizes motion blur for smooth visuals.
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MSI 321UPX QD-OLED Overview

Immerse yourself in rich visuals during fast-paced matches with the MAG 321UPX QD-OLED 31.5" 4K HDR 240 Hz Gaming Monitor from MSI. Featuring a 240 Hz refresh rate and 0.03 ms response time with adaptive-sync support, this UHD 4K 3840 x 2160 OLED display minimizes motion blur for smooth visuals.

This OLED display also delivers rich visuals with VESA DisplayHDR True Black 400 certified high-dynamic range support providing realistically bright highlights and deep shadows. You can connect your compatible devices through the dual HDMI ports and DisplayPort 1.4a input. Or use the USB-C port with a compatible laptop to transfer video, audio, and up to 15W of power. Plug a pair of headphones into the 3.5mm jack for listening privacy. MSI's 3-year OLED warranty covers burn-in.

Stunning Color
The 31.5" Quantum Dot OLED panel delivers rich, cinematic visuals with 1.07 billion colors that's factory calibrated for Delta E ≤2 accuracy, covering 99% of the DCI-P3 gamut. VESA DisplayHDR True Black 400 certified high-dynamic range enhances highlights and shadows with a 1.5 million:1 contrast ratio and 1000 nits peak brightness.
Responsive Performance
With a 240 Hz refresh rate and 0.03 ms response time, the MAG 321UPX reduces motion blur for smooth experiences during fast-paced scenes.
Adaptive-Sync
Reduce screen tearing with adaptive-sync support. This technology enables 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.
OLED Care 2.0
MSI OLED Care includes Pixel Shift, Panel Protect, Static Screen Detection technologies along with a graphene film and custom heatsink to help prevent burn-in. Boundary detection adjusts the luminance between two images or an image and background while taskbar detection automatically scans the shape of your taskbar to reduce its luminance. This display is also designed to automatically detect prominently contrasting logos and automatically scans their shape and color to reduce luminance.
Game Assistance
Smart Crosshair places an aim dot at the center of the screen. Its color dynamically changes its color to stand out from the background colors. Optix Scope magnifies a screen area at the touch of a shortcut key, allowing you to snipe opponents. AI Vision technology reveals details in darkened environments while enhancing the brightness and color saturation.
Console Mode
Enjoy smooth visuals with your connected console system with a 120 Hz refresh rate. Variable Refresh Rate (VRR) support reduces screen tearing and stuttering while auto low-latency mode (ALLM) sets the ideal latency for near lag-free responsiveness. HDMI CEC support automatically wakes the screen and switches the input to connected computers along with PlayStation and Nintendo Switch consoles by activating their respective controllers.
Ergonomics
Adjust the height, tilt, and swivel to optimize your viewing. You can also use the 100 x 100mm VESA mounting pattern to place the display on a swivel arm or multi-monitor stand. With 178° horizontal and vertical viewing angles, you can see the screen clearly from almost any position. Anti-reflection and blue light reducing technologies help to reduce eyestrain during extended viewing.
UPC: 824142341100

MSI 321UPX QD-OLED Specs

Key Specs
Display Size
31.5"
Panel Type
Quantum Dot OLED (QD-OLED)
Native Resolution
3840 x 2160
Maximum Brightness
250 nits / cd/m2
HDR Support
Yes
Color Support
1.07 Billion Colors (10-Bit)
Color Gamut
97% Adobe RGB
99% DCI-P3
138% sRGB
Finish
Anti-Glare
Touchscreen
No
A/V Inputs
DisplayPort 1.4 / HDMI
A/V Outputs
3.5 mm (Analog Audio)
USB I/O
USB-C
Built-In Speakers
No
Display
Size
31.5"
Panel Type
Quantum Dot OLED (QD-OLED)
Aspect Ratio
16:9
Native Resolution
3840 x 2160
Maximum Brightness
250 nits / cd/m2
HDR Support
Yes
Contrast Ratio
Near Infinite (Black Pixels Emit No Light)
Response Time
0.03 ms (GtG)
Refresh Rate
240 Hz
Variable Refresh Technology
Adaptive-Sync
Color Support
1.07 Billion Colors (10-Bit)
Color Gamut
97% Adobe RGB
99% DCI-P3
138% sRGB
Viewing Angle (H x V)
178 x 178°
Curved Display
No
Finish
Anti-Glare
Surface
Touchscreen
No
Connectivity
A/V Inputs
2x HDMI
1x DisplayPort 1.4a
A/V Outputs
1x 1/8" / 3.5 mm (Headphone)
HDCP Support
Yes
USB I/O
1x USB-C DP Alt Mode (Video Only)
Multi-Input Support (PIP/PBP)
No
Speaker
Built-In Speakers
No
Electrical
Input Power
100 to 240 VAC, 50 / 60 Hz
Power Adapter Type
Internal
General
Adjustments
Tilt: 20° (-5 to 15°)
Swivel: 60° (-30 to 30°)
Rotation: 20° (-10 to 10°)
Height Up to 3.9" / 100 mm
VESA Mounting-Hole Pattern
100 x 100 mm
Lock Slot
Yes: Kensington
Dimensions
28.2 x 18.8 x 9.5" / 717 x 477 x 242 mm (with Stand)
28.2 x 16.5 x 2.8" / 717 x 419 x 72 mm (without Stand)
Weight
20.1 lb / 9.1 kg
Packaging Info
Package Weight
29.7 lb
Box Dimensions (LxWxH)
38.5 x 20 x 6.5"

MSI 321UPX QD-OLED Reviews

Excellent Photo Editing Canvas

By Jon
Rated 5 out of 5
Date: 2025-12-24

Was very disappointed with this model (purchased 2), but the issues were mine, not the monitors. Diving into the settings revealed an amazing, color-rich palate with very little need to calibrate. My first OLED monitor experience has been a game-changer.

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