[ INDIVIDUAL COMPONENT // DISPLAYS ]
MSI MPG 321URX QD-OLED
31.5-inch 4K QD-OLED gaming monitor with USB-C host charging.
IDENTIFICATION: Confirm the complete model/SKU and region on the rear label. Specifications below reflect manufacturer-published information for this model family; input timings and power supplies may vary with source, firmware, region and operating mode.
Specifications
| Catalog subcategory | OLED displays |
|---|---|
| Exact product / family | MSI MPG 321URX QD-OLED |
| Panel technology / size | 31.5-inch flat Quantum Dot OLED (QD-OLED), 16:9 |
| Native resolution | 3840 × 2160 |
| Native refresh rate | Up to 240 Hz at native resolution. |
| HDR / luminance / contrast | VESA DisplayHDR True Black 400; 250 cd/m² typical SDR and up to 1000 cd/m² peak at 3% APL. Typical contrast is 1,500,000:1. |
| Inputs and I/O | 2 × HDMI 2.1; 1 × DisplayPort 1.4a; USB-C with DisplayPort Alt Mode and up to 90 W USB Power Delivery; USB-A/USB-B hub and headphone out. |
| Stand / VESA | Adjustable tilt, swivel, height and pivot stand; VESA 100 × 100 mm. |
| Power | 100–240 V AC, 50/60 Hz. USB-C can provide up to 90 W to a host; that is a separate USB-PD output rating, not the display's AC consumption. |
Signal and compatibility notes
The 4K/240 Hz mode depends on GPU output, link bandwidth, DSC and cable compliance. USB-C video requires host DisplayPort Alt Mode; the 90 W charging budget may not meet every laptop's full-load needs. Check MSI timing tables and OLED-care instructions.
Native resolution and refresh depend on the connected computer's GPU, supported timing, port, cable, firmware, operating system and selected color format. Confirm capabilities in the model-specific manual rather than inferring them from connector shape alone.
OLED care and preservation
OLED panels can retain static imagery. Enable the manufacturer's panel-protection, pixel-shift and refresh features; follow on-screen prompts and documented care intervals. Avoid disconnecting power during a panel maintenance cycle, and record operating hours, firmware, calibration state and image condition for archival systems.
Manufacturer manuals & sources
- MSI — MPG 321URX QD-OLED official specificationsManufacturer-hosted model information; verify the exact regional SKU, revision, and current manual before installation.
- MSI — MPG 321URX combined official manual (PDF)Manufacturer-hosted model information; verify the exact regional SKU, revision, and current manual before installation.