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Monitor
MAG 321UP QD-OLED X24
Experience immersive gaming with the MAG 321UP QD-OLED X24 gaming monitor. Featuring a 3840 x 2160 (UHD) QD-OLED panel, 240Hz refresh rate, and 0.03ms (GtG) response time, it delivers stunning clarity and speed. VESA ClearMR 13000 and DisplayHDR True Black 500 ensure vivid visuals with deep blacks and minimal motion blur. This 4th-gen QD-OLED incorporates a 5-layer Tandem OLED architecture powered by EL Gen 3 technology, which boosts light efficiency by 30%. For console users, HDMI 2.1 provides full support for 4K 120Hz, VRR, and ALLM, ensuring a seamless next-gen gaming experience.
Official Monitor and PC Partner
MSI is the Official Monitor and PC Partner of World of Warcraft: Midnight and Diablo IV: Lord of Hatred. Dominate every realm with breathtaking visuals and unstoppable performance. Gear up with an MSI monitor and PC, and bring your epic battles to life.
©/TM/® 2026 Blizzard Entertainment, Inc.
overview
4th-Gen QD-OLED
DarkArmor Film
Ultimate Contrast
G-Sync Compatible
AMD Freesync Premium Pro
The MAG 321UP QD-OLED X24 gaming monitor's specialized film technology is designed to enhance light absorption and eliminate the distracting purple or reddish tints often visible on standard QD-OLEDs under ambient light. It boosts pure black levels by up to 40%, significantly improving contrast and delivering superior image performance. Furthermore, it upgrades the screen surface hardness from 2H to 3H, offering 2.5x better scratch resistance to effectively withstand daily wear and tear.
The MAG 321UP QD-OLED X24 gaming monitor delivers a superior HDR experience with 1000 nits peak brightness, infinite contrast ratio 1,500,000:1, and pure color saturation. It is VESA DisplayHDR™ True Black 500 certified, ensuring vibrant, true-to-life visuals with 99% DCI-P3 wide color gamut and high color accuracy of Delta E=2.
The MAG 321UP QD-OLED X24 gaming monitor's G-SYNC Compatible support ensures smoother, tear-free gaming by syncing the monitor's refresh rate with the GPU. It reduces screen tearing, stuttering, and input lag for a more fluid experience, especially in fast-paced games. Additionally, it fully supports future hardware, allowing gamers to maximize the performance of cutting-edge GPUs. This ensures seamless compatibility and optimal visual quality, letting users take full advantage of new features like ray tracing and variable refresh rates.
TEAR FREE, STUTTER Free fluid gaming
Gaming shouldn’t be a choice between choppy gameplay and broken frames. With the MAG 321UP QD-OLED X24 gaming monitor, you’ll experience fluid, artifact-free performance. Enjoy tear-free and stutter-free gameplay with added support for HDR.
* Note: FreeSync technology requires both a monitor and an AMD Radeon™ graphics card with FreeSync support. Visit https://www.amd.com/freesync for complete details. Confirm compatibility with your system manufacturer before purchase.
Uniform Luminance
The MAG 321UP QD-OLED X24 gaming monitor features Uniform Luminance with customizable HDR curves to ensure smooth transitions between light and dark scenes. This minimizes ABL (Auto Brightness Limiter) effects, eliminating sudden brightness fluctuations.
Default Peak 1000
Sudden brightness drop.
Cust. Peak 1000
Smooth brightness transition.
Cust. Peak 1000 (Lowest)
Brightness remains consistent.
Screen images simulated. Recorded footage may not accurately reflect actual brightness or color performance due to camera limitations. Brightness cannot exceed the curve limits due to panel hardware restrictions.
QD-OLED Penta Tandem™
The MAG 321UP QD-OLED X24 gaming monitor boasts a QD-OLED Penta Tandem™ panel, integrating a 5-layer light-emitting structure to boost light efficiency by up to 30%. It sustains a peak HDR brightness of 1000 nits with lower power consumption, delivering brilliant visuals and superior light emission.
AI NAVIGATOR
AI CROSSHAIR
AI VISION
The aim dot on the MAG 321UP QD-OLED X24 gaming monitor automatically changes color, making it visible at any time. If the color of the aim dot overlaps with the background color, it will be problematic for aiming.
The MAG 321UP QD-OLED X24 gaming monitor's new AI Vision technology can not only reveal details in dark areas but also enhance overall brightness and saturate colors, bringing brightness to your day.
GAMING ASSISTANCE
ASPECT RATIO OPTIONS
FW UPDATE
Optix Scope
The MAG 321UP QD-OLED X24 gaming monitor supports a variety of aspect ratios, allowing selection between 27” and 24.5” imagery. Choose the size you want at your leisure, and elevate your gaming experience to the utmost.
24.5"
27"
The MAG 321UP QD-OLED X24 gaming monitor can update the firmware which is simple and easy to use. This allows users to update the firmware on their own at any time when the latest version is released by MSI. This ensures that the screen is always in the best-optimized state.
The built-in aim magnifier on the MAG 321UP QD-OLED X24 gaming monitor provides multi-stage zooming with shortcut keys to quickly switch the magnification. The screen can maintain the magnification regardless of the weapon used.
Super Low Motion Blur
The MAG 321UP QD-OLED X24 gaming monitor supports Super Low Motion Blur (SLMB) to significantly reduce ghosting and motion blur, ensuring fast-moving objects remain razor-sharp and easy to track. This technology inserts black frames between images to counteract image persistence, providing gamers with advanced motion clarity.
SLMB OFF
Motion blur visible, harder to focus on targets.
SLMB ON
Sharper motion with reduced blur — easier target tracking.
* Note: SLMB is available at 4K 180Hz or 4K 240Hz only and cannot be used simultaneously with VRR.
Confidence Guaranteed
The MAG 321UP QD-OLED X24 gaming monitor is designed for long-lasting, breathtaking visuals. The custom heatsink design and advanced graphene film improve heat dissipation, while dedicated software to reduce the chances of burn-in over time.
OLED CARE 2.0
Three-Year Warranty
Custom Heatsink
The MAG 321UP QD-OLED X24 gaming monitor features MSI OLED Care 2.0, which includes several functions designed to prevent static images or elements from remaining on the screen and to adjust peak brightness levels when not necessary.
Pixel Shift
Pixel Shift moves the screen's pixels at regular intervals, ensuring that images are not displayed in the same position, thereby preventing static image retention.
Panel Protect
By doing Pixel Refresh, which is automatically activated if the screen is active for more than 4 hours.
Static Screen Detection
When the system detects that there are static images on the screen for a set period, it will automatically reduce brightness.
Boundary Detection
After a certain number of seconds, the boundary protection adjusts the luminance of the boundary between two images or image and background.
Taskbar Detection
When the system detects the TaskBar displayed on the desktop, it automatically scans its shape and then automatically reduces luminance to prevent burn-in issues.
Multi-logo Detection
When the system detects serveral static and prominently contrasting logo displayed on the screen, it automatically scans their shape and color, and then proceeds to reduce luminance automatically to prevent burn-in issues.
MSI recognizes the significance of providing extensive support, allowing our users of the MAG 321UP QD-OLED X24 gaming monitor to enjoy their gaming experience worry-free. We offer a 3-year warranty for OLED panels, exceeding standard coverage by including safeguards against the OLED burn-in issue.
The MAG 321UP QD-OLED X24 gaming monitor's panel features graphene film for superior thermal conductivity and customized heatsink designs, enabling fanless operation for efficient, silent heat dissipation, extending the panel's lifespan.
Optimized Comfort by Design
The MAG 321UP QD-OLED X24 gaming monitor features a sleek, adjustable stand that lets you fine-tune height and tilt to your preference. For those seeking a clean, wall-mounted setup, the display also offers 100x100mm VESA-mount integration.
[ -30° ~ 30° ]
[ 0 ~ 110 mm ]
[ -5° ~ 15° ]
Connectivity
Panel Size: 31.5"
Panel Type: QD-OLED
Aspect Ratio: 16:9
Panel Resolution: 3840 x 2160 (UHD)
Refresh Rate: 240Hz
Response Time: 0.03ms (GtG)
faq
Q1: What defines the 4th-Gen QD-OLED?
Features a 5-layer Tandem OLED architecture powered by EL Gen 3 technology, achieving a 30% leap in overall luminous efficiency compared to previous generations. Please refer to our blog for a detailed generation comparison. Link here: https://www.msi.com/blog/the-evolution-of-immersion-decoding-the-5th-gen-qd-oled-revolution-with-msi
Q2: What is DarkArmor Film?
A specialized film technology that enhances light absorption, eliminating purple or reddish tints. It deepens black levels by 40% and increases surface hardness to 3H for 2.5x better scratch resistance.
Q3: Why use Uniform Luminance to customize HDR curves?
Standard HDR often suffers from aggressive ABL (Auto Brightness Limiter), causing sudden dimming. Uniform Luminance lets you fine-tune brightness levels for smoother visuals in gaming and productivity. Please refer to our blog for a detailed generation comparison. Link here: https://www.msi.com/blog/the-unlocked-customize-hdr-brightness-apl-on-the-msi-mpg-341cqr-qd-oled-x36
Q4: What is the adjustable range for Uniform Luminance?
The APL (Average Picture Level) can be adjusted from 3% to 75% across 14 custom points.
Q5: What does the HDR Brightness feature do?
It allows users to fine-tune the overall brightness level while in HDR mode.
Q6: How do Color Customization settings enhance the experience?
Settings like Saturation, Six-Axis Color, and Gamma allow you to tailor visuals for specific scenarios, such as boosting enemy contrast in games or enriching colors for cinema.
Q7: Is this monitor suitable for office work or video editing?
Yes, this monitor is highly suitable for both because it offers professional-grade color accuracy for video editing and exceptional clarity that reduces eye strain during office work. Modern QD-OLEDs also include advanced "care" features to prevent burn-in, making them a reliable choice for long-term daily use in any professional setting.
Q8: Is 4th-gen QD-OLED a Tandem QD-OLED panel?
Yes. It features a multi-layer Tandem OLED structure with EL Gen 3 technology, boosting light efficiency by up to 30%.
MAG 321UP QD-OLED X24
- The latest 4th-Gen QD-OLED Panel – With stunning image quality and fast response time.
- DarkArmor Film- Delivers 40% deeper blacks and a 2.5x more scratch-resistant screen surface.
- Uniform Luminance - HDR Curve Customization allowing you to customize the HDR curve and enjoy a smoothly uniform HDR experience.
- 5-layer tandem OLED panel with EL Gen 3 technology – Light efficiency up to 30%.
- MSI OLED Care 2.0 – Reduced the risk of OLED image sticking / burn-in.
- Incredible HDR visual – VESA DisplayHDR True Black 500.
- Peak 1000 Nits-delivers a superior HDR experience with 1000 nits peak brightness.
- Ensures the color meets the market standard – Delta E=2.
- Crystal-Clear Motion – VESA ClearMR 13000 certified.
- 3-Year Burn-In Warranty – Including coverage for OLED burn-in.