MSI MPG 321URXDE QD-OLED computer monitor 80 cm (31.5 inch) 3840 x 2160 pixels 4K Ultra HD Black

The MSI MPG 321URXDE 31.5" QD-OLED monitor delivers a 3840 x 2160 (UHD) QD-OLED panel with exceptionally high contrast and accurate color reproduction. Designed for both gaming and professional use, it combines a 240 Hz refresh rate, ultra-fast 0.03 ms (GtG) response capability, VESA ClearMR 13000 certification, and DisplayHDR True Black 400 support. The monitor includes HDMI 2.1 ports with 48 Gbps bandwidth, VRR and ALLM for console compatibility, an ergonomic stand with height adjustment, a built-in USB hub and VESA mountability. OLED Care 2.0 provides screen protection features to reduce the risk of OLED burn-in.

Advantages

QD-OLED technology and the Quantum Dot layer improve color conversion and deepen black levels for clearer text and detailed visuals. High refresh rate and extremely low response time reduce motion blur and improve clarity in fast scenes. VESA ClearMR 13000 and DisplayHDR True Black 400 certifications ensure vivid imagery and consistent HDR performance. OLED Care 2.0 adds pixel-shift, panel protection and static-screen detection to lower the likelihood of retention. Ergonomic design, a relocated 5-way joystick navigator and USB hub increase usability for extended sessions.

Suitable for

• Competitive and console gaming requiring high refresh rates and low latency
• Content creation and photo/video editing that demand high contrast and accurate colors
• Multitasking and productivity with 4K resolution and ergonomic adjustments
• Home entertainment with HDR and deep black levels

Key specifications

• Display diagonal: 31.5"
• Resolution: 3840 x 2160 (4K UHD)
• Panel type: QD-OLED
• Refresh rate: up to 240 Hz
• Response time: 0.03 ms (GtG) / listed 1 ms
• Contrast ratio (typical): 1,500,000:1
• Brightness (typical): 250 cd/m²
• Aspect ratio: 16:9
• HDMI: HDMI 2.1 with 48 Gbps bandwidth
• Adaptive features: VRR, ALLM
• Built-in USB hub and 1x USB-C downstream port
• VESA mounting supported
• Energy class (SDR/HDR): G / G

How to use

Place the monitor on a stable surface or mount it using the VESA pattern. Connect your PC or console via HDMI 2.1 or DisplayPort (if available) and configure the display settings to 3840 x 2160 resolution and the desired refresh rate (up to 240 Hz) in your system display options. Enable VRR and ALLM on compatible sources for reduced input lag and smoother gameplay. Use the bottom-centered 5-way joystick to navigate the on-screen menu for brightness, color profiles, and OLED Care 2.0 settings. Connect peripherals to the built-in USB hub or the USB-C downstream port as needed.

Recommendations

To minimize OLED wear, enable the OLED Care 2.0 features (Pixel Shift, Panel Protect, Static Screen Detection), avoid prolonged static images at high brightness, and use varied content. Adjust brightness to comfortable levels (typical 120–200 cd/m² for indoor use) and activate sleep/standby modes when the monitor is idle.