What it is
The MSI MAG 321UP QD-OLED is a 32-inch 4K computer monitor that uses a QD-OLED screen. It is meant for PC and console gamers who want sharp, high-contrast picture and fast motion.
Specs
| Screen sizes | 31.5 inches |
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| Panel type | QD-OLED |
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| Resolution | 3840 x 2160 (UHD) |
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| Refresh rate | 165Hz |
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| HDR | |
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| Inputs | 1x DisplayPort 1.4a, 2x HDMI 2.1 (4K at 165Hz), 1x USB Type-C (DP Alt mode, 15W power delivery) |
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| Smart platform | |
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| Warranty | |
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From the maker's spec page, checked October 10, 2026. A blank row means the maker does not state it.
What the specs mean
4K on a 31.5-inch screen means text and games look very sharp, without the need for a giant desk. 165Hz means the screen can refresh up to 165 times a second, so motion in fast games looks smoother than on a regular 60Hz screen. QD-OLED pixels turn fully off, so blacks are truly black and dark scenes have strong contrast. The two HDMI 2.1 ports let a PS5 or Xbox Series X run at 4K and high frame rates, and the USB-C port can carry picture from a laptop while charging it lightly.