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MSI MPG 491CQPX QD-OLED

49-inch · 5120 × 1440 · 240 Hz · exact MSI global configuration

49-inch QD-OLED monitor with 5120 × 1440 native resolution and a manufacturer-listed 240 Hz maximum. Up to 240 Hz at 5120 × 1440 through DisplayPort, HDMI or USB-C DisplayPort Alt Mode. Required source, cable and mode support must be checked.

Reviewed 7 Sept 2026Manufacturer specifications, not a hands-on test.

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WHAT IT BRINGS

The useful part.

The 49-inch 32:9 panel provides 5120 × 1440 pixels, picture-by-picture and a KVM function.

Manufacturer source

BEFORE YOU CHOOSE

The checks that matter.

The assembled display is 1195 mm wide and 328 mm deep. Its diagonal is not directly equivalent to a 16:9 screen’s usable dimensions.

Manufacturer source

NOTHING HIDDEN IN THE SMALL PRINT

Every specification.
With its source.

Our publishing standard

Screen diagonal: 49 in
Conditions & context
Manufacturer specification · Manufacturer active screen diagonal. Aspect ratio and actual width differ; diagonals across 16:9 and 32:9 displays do not imply equal usable areas.
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Native resolution: 5120 × 1440
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Refresh rate: 240 Hz
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Manufacturer specification · Up to 240 Hz at 5120 × 1440 through DisplayPort, HDMI or USB-C DisplayPort Alt Mode. Required source, cable and mode support must be checked.
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Panel technology: QD-OLED
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Inputs and versions: 1 × DisplayPort 1.4a; 2 × HDMI 2.1; 1 × USB-C with DisplayPort Alt Mode and up to 98 W Power Delivery; headphone output
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Manufacturer specification · Up to 240 Hz at 5120 × 1440 through DisplayPort, HDMI or USB-C DisplayPort Alt Mode. Required source, cable and mode support must be checked.
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Dimensions with stand: 1195 × 328 × 410 mm (width × depth × height, with stand)
Conditions & context
Manufacturer specification · Manufacturer assembled dimensions with stand, ordered width × depth × height. Stand depth excludes additional cable clearance; this is not panel thickness.
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Stand depth: 328 mm
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Manufacturer specification · Manufacturer assembled dimensions with stand, ordered width × depth × height. Stand depth excludes additional cable clearance; this is not panel thickness.
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Aspect ratio: 32:9
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Declared brightness: 250 cd/m²
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Manufacturer specification · SDR manufacturer brightness; HDR modes have separate area-dependent values.
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Static contrast claim: 1500000:1
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Manufacturer specification · Manufacturer static contrast claim, not a measured result or an overall picture-quality ranking.
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Response method and claim: 0.03 ms GtG
Conditions & context
Manufacturer specification · Manufacturer response claim with its stated method. GtG, MPRT and input lag describe different things; minimum values are not average measured results.
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Adaptive sync: NVIDIA G-SYNC Compatible; AMD FreeSync Premium Pro
Conditions & context
Manufacturer specification · Manufacturer-listed compatibility; source, interface, operating mode and driver support are required.
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VESA mounting pattern: 100 × 100 mm
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Stand adjustment: Tilt −5° to +20°; swivel ±30°; height travel 100 mm
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Colour depth: 10-bit
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Manufacturer specification · Manufacturer colour-depth specification. FRC is retained where stated and is not relabelled as native panel bit depth.
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Screen shape: Curved, 1800R
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Dimensions without stand: 1195 × 190 × 372 mm (width × depth × height)
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HDR support: DisplayHDR True Black 400
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Manufacturer specification · Manufacturer-listed certification, not an independent test performed for this comparison.
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HDR brightness conditions: 450 cd/m² typical in True Black 400 mode at 10% APL; 1000 cd/m² typical in Peak 1000 mode at 3% APL
Conditions & context
Manufacturer specification · Separate manufacturer HDR modes and average picture level (APL) conditions. These area-dependent values do not describe full-screen SDR brightness.
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Stand height travel: 100 mm
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Manufacturer specification · Listed adjustment travel, separate from the overall assembled height.
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USB hub: 2 × USB 2.0 Type-A; 1 × USB 2.0 Type-B
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USB-C charging: 98 W
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Manufacturer specification · Manufacturer maximum USB-C charging output; not monitor power consumption. Compatible host and cable required.
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Picture modes: Picture-in-picture and picture-by-picture
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KVM function: Yes
Conditions & context
Manufacturer specification · Manufacturer-listed KVM function; compatible host connections and peripheral setup required.
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Screen surface: Anti-reflection
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Manufacturer specification
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