MSI MPG 321CURX QD-OLED 31.5-inch 4K 240 Hz Curved Monitor

The MSI MPG 321CURX is a curved 31.5-inch QD-OLED monitor listed with 4K UHD resolution and a 240 Hz refresh rate. Its combination of high refresh, a 0.03 ms claimed response time and USB-C power delivery is aimed at gaming and multi-device setups, while the OLED panel and glossy finish are worth considering for your room and usage.

At a glance

QD-OLED panel and 4K UHD resolution are paired with a claimed 240 Hz refresh rate for detailed, fast-moving games.
Manufacturer-listed connections include DisplayPort 1.4a, two HDMI 2.1 ports and USB-C with 98W power delivery.
KVM support, PiP/PbP and console modes may suit a desk shared between more than one system.
The manufacturer describes a 1700R curve, adjustable stand, OLED Care 2.0 and passive heatsink.

Price

£648.97Save 19%

Reference price: ~~£799.00~~

Price checked: 12 Nov 2026

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Often bought together

UGREEN 16K DisplayPort Cable 6.6FT [VESA Certified] DP 2.1 to DP | Display Port Lead 16K@30Hz 8K@240Hz 4K@240Hz 54Gbps HDR DSC 1.2a MST FreeSync G-Sync HDCP 2.3 for TV PC Gaming Monitor (2M)

£15.93

Pros and cons

Pros

4K resolution, 240 Hz refresh and a claimed 0.03 ms response time target high-detail, fast-paced gaming.
USB-C supports display output and up to 98W power delivery according to the listing, potentially reducing laptop cable clutter.
KVM and picture-in-picture/picture-by-picture support are useful when switching or viewing between two connected systems.
OLED Care 2.0 includes pixel shift and panel refresh features intended to help reduce burn-in risk.

Cons

The 240 Hz refresh and 4K resolution call for a capable graphics source to make full use of the advertised combination.
The listing describes the screen surface as glossy while another manufacturer section says its coating reduces glare. Room lighting and reflections may matter.

Technical specifications

27 specifications

Identity
Brand	MSI
Model	MPG 321CURX

Display and video
Screen size	31.5 Inches
Screen technology listed	OLED
Resolution	4K UHD 2160p
Native resolution	3840x2160
Aspect ratio	16:9
Screen surface	Glossy
Contrast ratio	1500000:1
Refresh rate	240 Hz
Response time	0.03 Milliseconds
Viewing angle	178 Degrees
Image brightness	250 Candela per Square Meter
Colour gamut value	138.0
Colour display	Yes
Picture enhancement technology	Quantum Dot OLED

Connections and features
HDMI ports	2
Total USB ports	4
USB 2.0 ports	3
Connectivity listed	DP 1.4a, HDMI, USB Type C
Hardware connectivity listed	DisplayPort, HDMI
Adaptive sync	FreeSync

Dimensions and installation
Form factor	Curved
Dimensions (D x W x H)	72D x 48W x 32H centimetres
Weight listed	4 Kilograms

Power and warranty
Voltage	220 Volts
Warranty listed	3 Years Manufacturer Warranty

What to know before buying

Listing details to confirm

Listing details are inconsistent or unconfirmed: the monitor is variously described as 31.5 inches and 32 inches, and the surface is called glossy in specifications but anti-reflective in manufacturer copy. Brightness is listed as 250 Candela per Square Meter and also described as up to 1000 nits at HDR peak. Confirm the exact panel, finish and mode-specific brightness claims for the selected listing before purchase.

Who is it for?

A good fit for

PC or console gamers prioritising 4K detail and high refresh, with compatible source hardware.
Laptop users who want USB-C display connection and the listed 98W power delivery.
Desk setups switching between two systems or using PiP/PbP.

Less suited to

Buyers seeking an explicitly matte or consistently specified screen finish.
Users whose graphics hardware cannot take advantage of 4K at high refresh rates.

MSI MPG 321CURX QD-OLED 31.5-inch 4K 240 Hz Curved Monitor · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 95 ratings

5 stars74%74%
4 stars8%8%
3 stars8%8%
2 stars4%4%
1 star6%6%

Customer feedback highlights picture quality, deep blacks, HDR, build and easy setup, with a positive account of PS5 use. These impressions align with the listed 4K QD-OLED panel and console modes, but do not establish performance for every setup. Ratings are mostly in the top category, while a smaller spread across lower star levels means experiences are not uniformly positive.

Positive themes

Customers praise the picture quality, deep blacks and HDR presentation.
Feedback also describes the build and setup positively.

Frequently asked questions

What resolution and refresh rate are listed?

The listing gives 4K UHD 2160p resolution and a 240 Hz refresh rate. It also specifies a native resolution of 3840x2160.

Does the monitor support USB-C charging?

The manufacturer claims USB-C display connectivity with 98W power delivery. Confirm device compatibility and the selected listing details before relying on it for laptop charging.

Can it connect to and switch between two systems?

The manufacturer describes KVM for two devices and PiP/PbP support. The available functions depend on how the systems are connected.

Is the screen glossy or anti-reflective?

The specifications call it glossy, while manufacturer copy describes an anti-reflective coating. The listing does not resolve this inconsistency, so check the exact finish with the seller.