MSI MPG 321URX QD-OLED 31.5" 4K UHD 240Hz Gaming Monitor
PRODUCT DESCRIPTION
MSI MPG 321URX QD-OLED 31.5" 4K UHD 240Hz Gaming Monitor
Key specifications: 31.5" · UHD · QD-OLED · 240Hz · ClearMR 13000 · 0.03ms(GtG) · G-SYNC Compatible · HDR400 · Adjustable Stand · 2x HDMI2.1 · DP1.4a · USB-C PD90W · USB Hub · KVM
240Hz Refresh Rate + 0.03ms Response Time
The MPG 321URX QD-OLED is equipped with a 240Hz refresh rate QD-OLED Panel that can reach a fast 0.03ms GtG response time.
ClearMR 13000
MPG 321URX QD-OLED passed strict tests and successfully got the ClearMR 13000 certified.
The True Black
QD-OLED can achieve pixel-dimming level control and give you pure black scenes without any backlight bleeding.
OLED Care 2.0
Protection mechanisms including pixel shift, panel protection and static screen detection help minimise burn-in risk.
Gaming Intelligence
Monitor settings can be configured with keyboard and mouse, with hotkey options for game-specific settings.
KVM
Control multiple devices via one set of keyboard, mouse, and MSI gaming monitor.
MSI MPG 321URX QD-OLED Datasheet — Technical Specifications
General
| Product Name | MSI MPG 321URX QD-OLED 31.5" 4K UHD 240Hz Gaming Monitor |
| Model | MPG 321URX QD-OLED |
| MSI Part Number | 9S6-3DD29A-011 |
| EAN | 4711377184564 |
| Brand / Series | MSI QD-OLED Gaming Monitors |
| OLED Panel Warranty | MSI offers a 3-year OLED panel warranty that covers burn-in |
Display
| Panel Size | 31.5" |
| Active Display Area (mm) | 699.48(H) x 394.73(V) |
| Curvature | Flat |
| Panel Type | QD-OLED |
| Panel Resolution | 3840x2160 (UHD) |
| Pixel Pitch (H x V) | 0.1814(H) x 0.1814(V) |
| Aspect Ratio | 16:9 |
| Brightness (nits) | 250 (Typ.) |
| Contrast Ratio | 1500000:1 (Typ.) |
| Signal Frequency | 104.88~565.44 KHz(H) / 48~240.39 Hz(V) |
| Activated Range | 48 ~ 240Hz |
| Refresh Rate | 240Hz |
| Response time | 0.03ms (GtG) |
| Dynamic Refresh Rate Technology | G-Sync Compatible / AMD FreeSync™ Premium Pro Technology |
| HDR Support | DisplayHDR True Black 400 |
| Viewing Angle | 178°(H) / 178°(V) |
| Adobe RGB / DCI-P3 / sRGB | 97% / 99% / 138% |
| Surface Treatment | Anti-Reflection |
| Display Colors | 1.07B, 10 bits |
| Frameless Design | Yes |
Connectivity & Features
| Video ports | 1 x DisplayPort 1.4a / 2 x HDMI™ 2.1 (4K@240Hz) / 1 x Type-c (DP alt.) w/PD 90W |
| USB ports | 2 x USB 2.0 Type-A / 1 x USB 2.0 Type-B |
| Audio ports | 1 x Headphone-out |
Ergonomics & Mounting
| Adjustment (Tilt) | -5° ~ 15° |
| Adjustment (Swivel) | -30° ~ 30° |
| Adjustment (Pivot) | -10° ~ 10° |
| Adjustment (Height) | 0 ~ 110mm |
| Kensington Lock | Yes |
| VESA Mounting | 100 x 100 mm |
Power
| Power Type | Power Cable |
| Power Input | 100~240V, 50/60Hz |
Dimensions & Weight
| Weight (NW / GW) | 9.6 Kg/ 12.3 Kg |
| Dimension (W x D x H) | 718 x 242 x 483 mm / 718 x 69 x 418 mm (without stand) |
| Carton Dimension (W X D X H) | WW carton: 975 x 185 x 515 mm / Outer: 995 x 195 x 540 mm |
Certifications, Warranty & Accessories
| Warranty | 3 years (including panel burn-in) |
Specifications are as published by MSI and may change without notice — see the MSI product page for the latest details.
Compatibility & Connectivity
Video Inputs
1 x DisplayPort 1.4a / 2 x HDMI™ 2.1 (4K@240Hz) / 1 x Type-c (DP alt.) w/PD 90W
USB
2 x USB 2.0 Type-A / 1 x USB 2.0 Type-B
Audio
1 x Headphone-out
Mounting
VESA 100 x 100 mm — fits standard VESA monitor arms; check the arm's weight rating against the monitor weight in the datasheet.
Package Contents & MSI QD-OLED Gaming Monitors Ordering Information
In the Box
MPG 321URX QD-OLED with mounting hardware and quick guide, as packed by MSI.
MSI QD-OLED Gaming Monitors
| Model | Key feature |
| MPG 491CQPX QD-OLED | 49" / DQHD / Curved 1800R / QD-OLED / 240Hz |
| MPG 341CQR QD-OLED X36 | 34" / UWQHD / Curved 1800R / Tandem QD-OLED / 360Hz |
| MPG 341CQPX QD-OLED | 34" / UWQHD / Curved 1800R / QD-OLED / 240Hz |
| MPG 322URX QD-OLED | 31.5" / UHD / QD-OLED / 240Hz / ClearMR 13000 |
| MPG 321URXW QD-OLED | 31.5" / UHD / QD-OLED / 240Hz / ClearMR 13000 |
| MPG 321URX QD-OLED (this listing) | 31.5" / UHD / QD-OLED / 240Hz / ClearMR 13000 |
| MAG 272UP QD-OLED X24 | 26.5" / UHD / QD-OLED / 240Hz / ClearMR 13000 |
| MPG 271QR QD-OLED X50 | 26.5" / WQHD / QD-OLED / 500Hz / ClearMR 21000 |
| MAG 272QPW QD-OLED X28 | 26.5" / WQHD / QD-OLED / 280Hz / ClearMR 15000 |
| MAG 272QP QD-OLED X24 | 26.5" / WQHD / QD-OLED / 240Hz / ClearMR 13000 |
Datasheet & Downloads
| MSI product page | MPG 321URX QD-OLED on msi.com |
| Specifications | MPG 321URX QD-OLED specifications |
| Drivers, manuals & firmware | MPG 321URX QD-OLED support |
Frequently Asked Questions — MSI MPG 321URX QD-OLED
What resolution and refresh rate does the MPG 321URX QD-OLED support?
Resolution: 3840x2160 (UHD). Refresh rate: 240Hz (per MSI specification).
Can it charge a laptop over USB-C?
Yes, the USB-C port supplies up to 90W power delivery, so one cable can carry video, data and charging.
Is the stand height-adjustable?
Yes — height 0 ~ 110mm, tilt -5° ~ 15°, swivel -30° ~ 30°, pivot -10° ~ 10°.
Does it have built-in speakers?
No, connect headphones or external speakers.
Does it support KVM?
Yes, the built-in KVM lets you control two connected computers with one keyboard and mouse.
What about OLED burn-in?
MSI OLED Care adds burn-in protection features, and MSI offers a 3-year OLED panel warranty that includes burn-in.
What warranty do I get?
3 years (including panel burn-in) (MSI). Singapore local MSI warranty through the authorised distributor. Supplied by SourceIT with a GST invoice.