MSI MAG 321UP QD-OLED - 31.5" 4K UHD 165Hz Gaming Monitor

The MSI MAG 321UP QD-OLED gaming monitor is designed to deliver exceptional visual performance for competitive gamers, content creators, and entertainment enthusiasts. A next-generation 31.5-inch QD-OLED panel is featured with a 3840 x 2160 UHD resolution, allowing every image to be displayed with remarkable clarity, deeper contrast, and outstanding detail. Fast-paced scenes are rendered smoothly through a 165Hz refresh rate and an ultra-fast 0.03ms GTG response time, helping motion remain sharp and responsive during demanding gameplay.

Advanced Quantum Dot OLED technology is utilized to produce vibrant colors and true black levels, while VESA DisplayHDR True Black 400 certification ensures realistic HDR performance with enhanced shadow detail and bright highlights. HDMI 2.1 connectivity with full 48Gbps bandwidth support allows modern gaming consoles and high-performance PCs to take full advantage of 4K gaming, Variable Refresh Rate (VRR), and Auto Low Latency Mode (ALLM).

Long-term reliability is supported through MSI OLED Care 2.0, which incorporates advanced screen protection technologies to help reduce the risk of OLED burn-in. A graphene film and custom heatsink design are integrated to improve heat dissipation without requiring an internal cooling fan, maintaining silent operation while protecting panel performance. Ergonomic adjustment options and premium gaming features make the MAG 321UP QD-OLED an excellent choice for immersive gaming and productivity environments.

Key Features

31.5-Inch 4K UHD QD-OLED Display

A next-generation QD-OLED panel is utilized to deliver exceptional image quality with sharper details, improved text clarity, and deeper black levels across gaming, multimedia, and professional applications.

165Hz Refresh Rate and 0.03ms GTG Response Time

Fast-moving scenes are displayed with outstanding smoothness and responsiveness, helping reduce motion blur and providing a competitive advantage during gameplay.

DisplayHDR True Black 400 Certification

Enhanced HDR visuals are achieved through improved contrast, deeper blacks, and realistic brightness levels for a more immersive viewing experience.

Professional Color Accuracy

Color reproduction is optimized with 99% DCI-P3 coverage, Delta E ≤ 2 accuracy, and support for 1.07 billion colors, making the monitor suitable for both gaming and creative workflows.

MSI OLED Care 2.0

Advanced OLED protection technologies, including Pixel Shift, Panel Protect, and Static Screen Detection, are implemented to help minimize burn-in risks and extend panel lifespan.

AMD FreeSync Premium Pro

Smooth and tear-free gameplay is delivered through adaptive synchronization technology that reduces stuttering and screen tearing.

HDMI 2.1 Console Gaming Support

Full-bandwidth HDMI 2.1 connectivity supports up to 4K resolution at high refresh rates while enabling VRR and ALLM for modern gaming consoles.

Ergonomic Adjustable Stand

Comfortable viewing positions can be achieved through tilt, swivel, pivot, and height adjustment capabilities.

3-Year OLED Burn-In Warranty

Additional confidence is provided through MSI's comprehensive 3-year OLED warranty coverage, including protection against OLED burn-in.

Specifications

Panel Size: 31.5"

Active Display Area: 699.48(H) x 394.73(V) mm

Curvature: Flat

Panel Type: QD-OLED

Panel Resolution: 3840 x 2160 (UHD)

Pixel Pitch (H x V): 0.1814(H) x 0.1814(V) mm

Aspect Ratio: 16:9

Brightness: 250 nits

Contrast Ratio: 1,500,000:1

Signal Frequency: 30~390KHz (H) / 48~165Hz (V)

Activated Range: 48~165Hz

Refresh Rate: 165Hz

Response Time: 0.03ms (GTG)

Dynamic Refresh Rate Technology: AMD FreeSync™ Premium Pro

HDR Support: DisplayHDR True Black 400

Video Ports:

• 1 x DisplayPort 1.4a
• 2 x HDMI™ 2.1 (4K@165Hz)
• 1 x USB 2.0 Type-C (DP Alt Mode) with 15W Power Delivery

Audio Ports:

• 1 x Headphone-Out

Viewing Angle: 178° (H) / 178° (V)

Color Gamut:

• Adobe RGB: 97.5%
• DCI-P3: 99%
• sRGB: 138.2%

Surface Treatment: Anti-Reflection

Display Colors: 1.07 Billion (10-bit)

Frameless Design: Yes

Power Type: Power Cable

Power Input: 100~240V, 50/60Hz

Tilt Adjustment: -5° ~ 15°

Swivel Adjustment: 30° ~ 30°

Pivot Adjustment: -10° ~ 10°

Height Adjustment: 0 ~ 110mm

Kensington Lock: Yes

VESA Mounting: 100 x 100 mm

Weight (Net / Gross): 9.1kg / 11.8kg

Dimensions with Stand: 717 x 242 x 457 mm

Dimensions without Stand: 717 x 72 x 419 mm

Carton Dimensions:

• WW Carton: 972 x 185 x 513 mm
• Outer Carton: 990 x 200 x 538 mm

Maximum Resolution Support:

• DisplayPort: 3840 x 2160 (Up to 165Hz)
• HDMI™: 3840 x 2160 (Up to 165Hz)
• Type-C (DP Alt): 3840 x 2160 (Up to 165Hz) with 15W PD

Warranty: 3-Year OLED Warranty

*sRGB and DCI-P3 follow the CIE1976 standard.

Conclusion

The MSI MAG 321UP QD-OLED is engineered to provide premium 4K gaming performance, exceptional color accuracy, and advanced OLED technology in a versatile 31.5-inch format. A combination of a 165Hz refresh rate, 0.03ms response time, DisplayHDR True Black 400 certification, MSI OLED Care 2.0 protection, and HDMI 2.1 connectivity ensures an immersive and reliable gaming experience for both PC and console users.