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MSI MAG 321CUP QD-OLED 31.5" 4K HDR 165 Hz Curved Gaming Monitor

BH #MS321CPQDOLD • MFR #MAG 321CUP QD-OLED
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MSI MAG 321CUP QD-OLED 31.5" 4K HDR 165 Hz Curved Gaming Monitor
Key Features
  • 31.5" 16:9 1700R Curved OLED Panel
  • HDMI | DisplayPort | USB-C (15W)
  • UHD 4K 3840 x 2160 at 165 Hz
  • G-Sync Compatible
Catch every detail while competing in fast-paced matches with the MAG 321CUP QD-OLED 31.5" 4K HDR 165 Hz Curved Gaming Monitor from MSI. Featuring a 1700R curved design with thin bezels, this UHD 4K 3840 x 2160 OLED display envelopes your field of view for maximum immersion. Additionally, the 165 Hz refresh rate, 0.03 ms response time, and NVIDIA G-Sync compatibility minimizes motion blur for smooth visuals.
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MSI 321CUP QD-OLED Overview

Catch every detail while competing in fast-paced matches with the MAG 321CUP QD-OLED 31.5" 4K HDR 165 Hz Curved Gaming Monitor from MSI. Featuring a 1700R curved design with thin bezels, this UHD 4K 3840 x 2160 OLED display envelopes your field of view for maximum immersion. Additionally, the 165 Hz refresh rate, 0.03 ms response time, and NVIDIA G-Sync compatibility 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 2.1 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 165 Hz refresh rate and 0.03 ms response time, the MAG 321CUP reduces motion blur for smooth experiences during fast-paced scenes.
NVIDIA G-Sync
Reduce screen tearing with NVIDIA G-Sync compatibility. G-Sync 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: 824142378748

MSI 321CUP 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 (SDR Mode)
450 nits / cd/m2 (HDR Mode)
1000 nits / cd/m2 (Peak in HDR Mode)
HDR Support
Yes
Color Support
1.07 Billion Colors (10-Bit)
Color Gamut
98% Adobe RGB
99% DCI-P3
138% sRGB
Finish
Anti-Glare
Touchscreen
No
A/V Inputs
DisplayPort 1.4 / HDMI 2.1
A/V Outputs
3.5 mm
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 (SDR Mode)
450 nits / cd/m2 (HDR Mode)
1000 nits / cd/m2 (Peak in HDR Mode)
HDR Support
Yes
Contrast Ratio
Near Infinite (Black Pixels Emit No Light)
Response Time
0.03 ms (GtG)
Refresh Rate
165 Hz
Variable Refresh Technology
FreeSync Premium Pro, G-Sync
Color Support
1.07 Billion Colors (10-Bit)
Color Gamut
98% Adobe RGB
99% DCI-P3
138% sRGB
Viewing Angle (H x V)
178 x 178°
Curved Display
Yes: 1700R
Finish
Anti-Glare
Surface
Touchscreen
No
Connectivity
A/V Inputs
2x HDMI 2.1
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) with USB PD 15 W
Multi-Input Support (PIP/PBP)
Yes: Picture-in-Picture (PIP), Picture-by-Picture (PBP)
Speaker
Built-In Speakers
No
Electrical
Input Power
100 to 240 VAC, 50 / 60 Hz
Power Adapter Type
Internal
General
Certifications
CE, FCC
Adjustments
Swivel: 60° (-30 to 30°)
Tilt: 20° (-5 to 15°)
Height: Up to 3.9" / 100 mm
VESA Mounting-Hole Pattern
100 x 100 mm
Lock Slot
Yes: Kensington
Dimensions
28.1 x 18.6 x 12.5" / 714 x 473 x 318 mm
Weight
17.6 lb / 8 kg
Packaging Info
Package Weight
25.5 lb
Box Dimensions (LxWxH)
38.5 x 20.25 x 7.25"

MSI 321CUP QD-OLED Reviews

Perfect

By Karin
Rated 5 out of 5
Date: 2026-04-17

Purchased a Oled tv and this monitor From B&H the only place I buy my higher end electronics from. This monitor is great no issues with setup image is crazy good and has tons of settings. Pretty much plug n play games run smooth and the 1700r is just right for a 32" monitor. I was worried about using a curved monitor but within in a couple hours I didn't even notice it.

Brilliant Colors - Great Upgrade

By Erik
Rated 5 out of 5
Date: 2025-12-04

I Bought Two Of These And Use Them Side-by-side For A Full Wrap Around Experience. They Are Totally Immersive And The Color Is Fantastic. I'll Never Go Back To LED Displays Again!

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