The MPG 321URX QD-OLED is MSI’s 31.5-inch 4K 240 Hz QD-OLED gaming monitor. It offers DisplayHDR True Black 400, 99% DCI-P3 coverage, G-SYNC Compatible and FreeSync Premium Pro, two HDMI 2.1 ports and a USB-C input with 90 W charging, on a height-adjustable stand; MSI also includes panel burn-in in its three-year warranty. Reviews praise contrast, HDR and motion clarity; the semi-glossy surface lifting blacks under direct light and the lack of Dolby Vision are listed as drawbacks.
MPG 321URX QD-OLED, black. The DisplayPort 2.1 MPG 322URX QD-OLED and the white MPG 321URXW are separate models.
| Specification | Value |
|---|---|
| Panel | 31.5-inch flat QD-OLED; 3840 × 2160; 0.1814 mm pixel pitch; anti-reflection surface |
| Refresh and response | 240 Hz (48–240 Hz variable range); 0.03 ms GtG |
| Brightness and HDR | 250 nits typical; DisplayHDR True Black 400; 1,500,000:1 typical contrast |
| Colour | 10-bit (1.07 billion colours); 99% DCI-P3, 97% Adobe RGB, 138% sRGB |
| Adaptive sync | G-SYNC Compatible; AMD FreeSync Premium Pro |
| Inputs | 1 × DisplayPort 1.4a; 2 × HDMI 2.1; 1 × USB-C (DP Alt Mode, 90 W PD); 2 × USB 2.0 Type-A, 1 × USB 2.0 Type-B; headphone out |
| Stand and mounting | Tilt −5/15°, swivel ±30°, pivot ±10°, 110 mm height adjustment; VESA 100 × 100 |
| Size and weight | With stand 718 × 242 × 483 mm; without stand 718 × 69 × 418 mm; 9.6 kg net |
| Warranty | 3 years, including panel burn-in |
MSI presents the MPG 321URX as a premium gaming monitor with a 4K 240 Hz QD-OLED panel, 0.03 ms response time and OLED Care protections. MSI
Display Ninja says the monitor reaches 250 nits on a full white screen, 500 nits on a 10% window and up to 1000 nits on windows under 3%, and recommends the Peak 1000 HDR mode, which reaches 1000 nits; the other HDR mode is limited to about 450 nits. Forced Uniform Brightness in SDR keeps brightness from changing with window size. With the third-generation triangular subpixel layout, colour fringing is not noticeable on small text. The semi-glossy surface reflects more and lifts blacks under direct light. Burn-in protection includes screen move, pixel refresh and logo/taskbar detection, some of which are off by default. There is no Dolby Vision.
Display Ninja: MSI MPG 321URX ReviewKitGuru rated its FW.009 sample 9 out of 10 and says OLED makes a difference in gaming through contrast, HDR and motion clarity.
KitGuru: MSI MPG 321URX Review (4K/240Hz QD-OLED)On Australia’s ProductReview.com.au, a verified owner who bought from Amazon in November 2024 says the image clarity was a big step up from an IPS monitor and uses it for photo editing and gaming. They addressed burn-in worries through the monitor’s software that refreshes pixels when idle, and suggest noting the serial number and CHK code on the rear label before cables cover it.
ProductReview.com.au: MSI MPG 321URX QD-OLED reviews