Display
31.5 in, QD-OLED, 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p
31.5
Refresh Rate
48 Hz - 240 Hz
48 Hz
Brightness
300 cd/m²
300 cd
Contrast Ratio
1500000 : 1
1500000
Overview
Built around a QD-OLED panel, the MSI MAG 321UP QD-OLED X24 runs at 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p with a 48 Hz - 240 Hz refresh range. Motion handling is rated at 0.03 ms GtG. For adaptive sync, it supports FreeSync. Colour and light output come in at 300 cd/m² typical brightness, 1500000 : 1 contrast and 138 % sRGB coverage. Ports include 2x HDMI 2.1, 1x DisplayPort 1.4.
BrandMSIPanel TypeQD-OLEDResolution3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160pRefresh Rate48 Hz - 240 Hz
Key Highlights
- MSI MAG 321UP QD-OLED X24 speed | 48 Hz - 240 Hz refresh with 0.03 ms GtG response
- MSI MAG 321UP QD-OLED X24 sync | FreeSync
- MSI MAG 321UP QD-OLED X24 image | 300 cd/m² brightness and 1500000 : 1 contrast
Who Should Buy the MSI MAG 321UP QD-OLED X24
+ Best For
High-end PC gamers
4K 240 Hz is the reason this panel exists
Mixed PC and console desks
two HDMI 2.1 ports and a KVM switch
HDR gaming
1300 cd/m2 peak is high for an OLED, so highlights really punch
Colour-aware players
99% DCI-P3 means it edits as well as it games
× Not Ideal For
Single-cable laptop users
USB-C delivers only 15 W, nowhere near charging
Anyone needing speakers
there are none, only a 3.5 mm out
Mid-range GPUs
4K at 240 fps needs a top-tier card to be worth the money
Portrait setups
no pivot on this stand
Display Performance
Refresh Rate
48 Hz - 240 Hz
High-refresh gaming range
Response Time
0.03 ms GtG
Manufacturer-published transition time
Brightness
300 cd/m²
Typical brightness as specified; peak figure not published
Contrast
1500000 : 1
Standard panel black depth
Colour Gamut
138 % sRGB
Standard game and web colour
Gaming Performance
Refresh Rate48 Hz - 240 HzHigh ceiling supports competitive frame rates
Response Time0.03 ms (GtG)Published claim without independent testing
VRR / Adaptive SyncFreeSyncHelps reduce tearing on compatible GPUs
GPU Requirement3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p up to 240 HzHigh refresh ceiling needs a high-end GPU to fully utilise
HDR & Brightness Reality
This is one of the brighter OLED panels available: 1300 cd/m2 peak comes from the newer EL Gen 3 QD-OLED structure, and it is a real step up from the 1000 cd/m2 of the previous generation. Paired with DisplayHDR 500 True Black, bright highlights against dark backgrounds look excellent. The number that keeps it honest is 300 cd/m2 for a full white screen - so a sunlit room still flattens the effect. In controlled light this delivers some of the best HDR you can get on a desktop.
Connectivity & Ports
HDMI2x HDMI 2.1Published port count and version
DisplayPort1x DisplayPort 1.4Primary high-refresh PC connection
USB-CNot publishedNo one-cable laptop or charging function
USB HubNot publishedNo listed peripheral expansion
Audio Out3.5 mm audio out / headphone outExternal audio may still be preferred
Desk Fit & Ergonomics
Size / Footprint719.1 mm x 483.9 mm x 241.9 mmCheck desk width and depth before purchase
StandRemovable: YesA separate arm can replace the supplied base
VESA Mount100 x 100 mmUse a matching arm or wall mount
Tilt-5 ° to +15 ° / Slant - from -10° to 10°Covers the published forward and backward range
Height Adjust110 mm (4.33 in)Supports eye-level positioning
Swivel / Pivot±30 ° / No pivotSupports shared angles and portrait rotation
Real-World Use Cases
240 Hz at full resolution with a 0.03 ms response
two HDMI 2.1 ports with ALLM and VRR for PS5 and Xbox
the KVM switch shares one keyboard and mouse between systems
1300 cd/m2 peak makes bright scenes stand out against true black
Pros & Cons
Pros
- 48 Hz 240 Hz refresh range with 0.03 ms GtG response supports fast-paced use
- FreeSync give broad adaptive-sync compatibility
- Stand offers 110 mm (4.33 in) height adjustment, swivel
- 138 % sRGB coverage is published for the panel
Cons
- No listed built-in speakers
Score & Ratings
8.4/10
Great
Model Information
16
| Specification | Value |
|---|---|
| Brand | MSI |
| Series | MAG |
| Model | MAG 321UP QD-OLED X24 |
| Model Alias | MAG321UPQD-OLEDX24 |
| Full Product Name | MSI MAG 321UP QD-OLED X24 |
| Model Year | 2026 |
| Monitor Type | Gaming Monitor |
| Monitor Category | Gaming Monitor |
| Market Position | Mainstream Gaming |
| Primary Use | Competitive & Immersive Gaming |
| Region / Variant | Global (regional SKU suffixes may vary, e.g. US/EU/APAC) |
| Launch Status | Announced 2026 (per manufacturer model-year data) |
| Available Colors | Black |
| Warranty | 3 years standard limited warranty (MSI global policy; exact term/region may vary by country - see msi.com/page/warranty) |
| Panel Warranty | 3 years |
| Burn-In Warranty | 3 years OLED burn-in coverage (MSI's OLED panel guarantee, backed by MSI OLED Care) |
Display & Panel
16
| Specification | Value | What It Means |
|---|---|---|
| Screen Size | 31.5 in | |
| Exact Diagonal | 803 mm (31.61 in) | |
| Screen Format | 16:9 | |
| Aspect Ratio | 16:9 | |
| Active Display Width | 699.48 mm (27.54 in) | |
| Active Display Height | 394.73 mm (15.54 in) | |
| Display Area | 79.35 % | |
| Panel Type | QD-OLED | QD-OLED affects viewing angles, black depth and color consistency — each panel technology trades these off differently. |
| Panel Technology | OLED | |
| Panel Manufacturer | Samsung | |
| OLED Technology | QD-OLED | |
| Backlight Type | Self-emissive (no backlight — OLED) | |
| Self-Emissive Display | Yes | |
| Quantum Dot | Yes | |
| 3D Support | No | |
| Screen Coating | Anti-glare/Matte / EL Gen 3 technology / QD-OLED Penta Tandem / DarkArmor Film |
Resolution & Pixel Details
3
| Specification | Value | What It Means |
|---|---|---|
| Native Resolution | 3840 x 2160 pixels / Ultra HD (UHD) / 4K / 2160p | |
| Pixel Density | 139 ppi / 54 ppcm | 139 ppi / 54 ppcm indicates how much scaling may be needed in the operating system for comfortable reading. |
| Pixel Pitch | 0.181 mm (0.01 in) |
Picture Quality & Color
14
| Specification | Value | What It Means |
|---|---|---|
| Panel Bit Depth | 10 bits | |
| FRC | No | |
| Display Colors | 1073741824 colors / 30 bits | |
| Typical Brightness | 300 cd/m² | |
| Peak Brightness | 1300 cd/m² | |
| Static Contrast Ratio | 1500000 : 1 | |
| Horizontal Viewing Angle | 178 ° | |
| Vertical Viewing Angle | 178 ° | |
| HDR Support | DisplayHDR 500 True BlackHDR10 |
|
| HDR10 | Yes | |
| sRGB Coverage | 138 % | 138 % indicates how much of that color space the panel can reproduce, which affects color accuracy for photo/video work. |
| DCI-P3 Coverage | 99 % | |
| Adobe RGB Coverage | 97 % | |
| Uniformity Compensation | Yes |
Refresh Rate, Response & Gaming
11
| Specification | Value |
|---|---|
| Native Refresh Rate | 240 Hz |
| Refresh Rate Range | 48 Hz - 240 Hz |
| Minimum Response Time | 0.03 ms |
| Adaptive-Sync | Yes |
| AMD FreeSync | Yes |
| Motion Blur Reduction | Yes |
| Crosshair | Yes |
| AI Gaming Features | Yes |
| Console Mode | Yes |
| Picture-by-Picture | Yes |
| Picture-in-Picture | Yes |
Ports & Connectivity
14
| Specification | Value |
|---|---|
| HDMI Ports | 2 |
| HDMI Version | 2.1 |
| HDMI Bandwidth | 560.6 kHz - 562.6 kHz |
| HDMI CEC | Yes |
| DisplayPort Input | 1 |
| DisplayPort Version | 1.4 |
| DisplayPort Bandwidth | HBR3 |
| USB-C Video Input | Yes |
| DisplayPort Alt Mode | Yes |
| HDCP Support | Yes |
| USB-C Power Delivery | 15 W |
| KVM Switch | Yes |
| Audio Output | 3.5 mm |
| Headphone Output | 3.5 mm Audio Out |
Audio, Camera, Network & Smart Features
1
| Specification | Value |
|---|---|
| Built-In Camera | No |
Ergonomics & Stand
14
| Specification | Value | What It Means |
|---|---|---|
| VESA Mount | Yes | |
| VESA Size | 100 x 100 mm | |
| Removable Stand | Yes | |
| Height Adjustment | Yes | 110 mm (4.33 in) of travel allows the screen to be raised or lowered for a comfortable eye-level position. |
| Height Adjustment Range | 110 mm (4.33 in) | |
| Tilt Adjustment | Yes | |
| Forward Tilt | 5 ° | |
| Backward Tilt | 15 ° / Slant - from -10° to 10° | |
| Swivel Adjustment | Yes | |
| Left Swivel | 30 ° | |
| Right Swivel | 30 ° | |
| Portrait Mode | No | |
| Security Lock | Yes | |
| Anti-Theft Lock | Kensington Lock |
Dimensions, Weight & Design
4
| Specification | Value |
|---|---|
| Dimensions With Stand | 719.1 mm x 483.9 mm x 241.9 mm |
| Dimensions Without Stand | 719.1 mm x 483.9 mm x 69.26 mm |
| Weight With Stand | 7.7 kg (16.98 lbs) |
| Stand Depth | 241.9 mm (9.52 in) |
Power & Operating Conditions
12
| Specification | Value |
|---|---|
| Power Input | 100–240V |
| 110V Input Range | 100 V - 120 V |
| 220V Input Range | 220 V - 240 V |
| AC Frequency | 50 Hz - 60 Hz |
| Sleep Consumption | 0.5 W |
| Off Consumption | 0.3 W |
| Operating Temperature | 0 °C - 40 °C / 32 °F - 104 °F |
| Operating Humidity | 10 % - 90 % |
| Operating Altitude | 5000 m / 16404.2 ft |
| Storage Temperature | -20 °C - 60 °C / -4 °F - 140 °F |
| Storage Humidity | 10 % - 80 % |
| Storage Altitude | 12192 m / 40000 ft |
Eye Care, Protection & Additional Features
15
| Specification | Value |
|---|---|
| Flicker-Free | Yes |
| Low Blue Light | Yes |
| OLED Protection | Yes |
| OLED Care | Yes |
| Burn-In Protection | Yes (MSI OLED Care) |
| Thermal Management | Yes |
| Custom Heatsink | Yes |
| Graphene Cooling Film | Yes |
| OSD Software | Yes |
| On-Screen Display | Yes |
| Screen Split | Yes |
| Uniformity Mode | Yes |
| AI Visual | Yes |
| Anti-Theft Slot | Yes (Kensington lock slot) |
| Additional Monitor Features | 5-way Joystick Navigator; AI Vision; Aspect Ratio Options; Optix Scope |
Certifications, Standards & Licenses
9
| Specification | Value |
|---|---|
| TÜV Flicker-Free | TÜV Rheinland Flicker Free Certification |
| TÜV Low Blue Light | Yes |
| VESA DisplayHDR | DisplayHDR 500 True Black |
| ClearMR | 13000 |
| RoHS | Yes |
| CE | Yes |
| FCC | Yes |
| FCC-B | Yes |
| WEEE | Yes |
Included Accessories
1
| Specification | Value |
|---|---|
| DisplayPort Cable | DisplayPort cable |
Packaging Information
4
| Specification | Value |
|---|---|
| Package Width | 975 mm (38.39 in) |
| Package Height | 515 mm (20.28 in) |
| Package Depth | 185 mm (7.28 in) |
| Package Weight | 12.38 kg (27.29 lbs) |
Frequently Asked Questions
01 What GPU do I need for 4K at 240 Hz? +
A top-tier one. Hitting 240 fps at 3840 x 2160 is one of the hardest targets in PC gaming - expect to use upscaling and frame generation in most modern titles even with a flagship card. In esports titles it is far more achievable.
02 The USB-C is 15 W - what is it actually for? +
No. The USB-C port carries video via DP Alt Mode but only supplies 15 W, which is not enough to charge a laptop. You will need a separate charger.
03 How is this brighter than other OLEDs? +
It uses Samsung's newer EL Gen 3 QD-OLED with a Penta Tandem structure, which pushes peak brightness to 1300 cd/m2 - up from roughly 1000 on the previous generation. Full-screen brightness is still 300 cd/m2.
04 Is there any built-in audio for a headset-free setup? +
No. There is a 3.5 mm audio out only, so budget for headphones or desk speakers.
05 What does the KVM switch do? +
It lets you connect two computers and one set of peripherals, then switch which machine the keyboard and mouse control. Useful if you keep a work laptop and a gaming PC on the same desk.
Reviews
DISPLAYINPUT · INDEPENDENT · SPEC-BASED · NO SPONSORED PLACEMENT
SHEET № MAG 321UP QD-OLED X24