Overview

  • UWQHD 3440 x 1440 resolution
    High resolutions that deliver a solid gaming or video experience without undue strain on your graphics card.
  • 1 ms response time
    Delivers ultra-fast performance, minimizing lag and time-to-screen.
  • 155 Hz refresh rate
    Delivers powerful performance so that you can get the most out of your games and videos.
  • Frameless design
    Enjoy the ultimate gaming experience with super narrow bezels.
  • Anti-Flicker and less blue light
    Game even longer and prevent eye strain and fatigue.
  • Type-C 65W PD
    Built-in an USB Type-C connection with 65W power delivery allows you to effortlessly connect to and charge your devices.

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Specifications

Capacity & configuration

Display Type
LCD
Panel Type
IPS
Stand Type
Fixed height stand

Dimensions & weight

Product Name
MAG 401QR 40" UWQHD IPS 155Hz 1ms Gaming Monitor with FreeSync Premium and HDR 400 (HDMI, DisplayPort, USB-C)
Product Height Without Stand
16.38 inches
Product Width
45.94 inches
Product Depth Without Stand
3.3 inches
Product Weight
22.7 pounds
Product Height With Stand
20.88 inches
Product Depth (With Stand)
11.4 inches

Features

Brand
MSI
Color
Black
Refresh Rate
155Hz
Maximum Resolution
3440 x 1440
Native Resolution
3440 x 1440
Contrast Ratio
1000:1
Response Time
1 milliseconds
Synchronization Technology
FreeSync Premium (AMD Adaptive Sync)
Aspect Ratio
21:9
Display Contour
Flat
Brightness
400 candela per square meter
Screen Size
40 inches
High Dynamic Range (HDR)
Yes
High Dynamic Range Format
VESA Certified DisplayHDR 400
Horizontal Viewing Angle
178 degrees
Vertical Viewing Angle
178 degrees
On-Screen Display Languages
English
Display Surface
Anti-glare
Number of DisplayPort Inputs (Total)
1
Number of HDMI Inputs (Total)
2
Display Connector(s)
1 x DisplayPort 1.4
Number of USB Ports (Total)
3
USB Ports
2 x USB-A 2.0
Headphone Jack
Yes
Wall Mountable
Yes
VESA Wall Mount Standard
100mm x 100mm
Stand Ergonomics
Tilt
Anti-Glare
Yes
Eye Relief Features
Flicker free
Built-In Webcam
No
Integrated Speaker(s)
No
ENERGY STAR Certified
No
Operating System Compatibility
Android
UPC
824142292709

Power & warranty

Model Number
MAG401QR
Warranty - Parts
3 years
Warranty - Labor
3 years

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
GEORGEZJun 4, 2026 · Verified purchase ★★★★★

VERY NICE! - HUGE SCREEN! Cool features (Aim assist). Anything MSI I have purchased has ALWAYS been good. You can't beat what you get here for under $400!

ValenzApr 26, 2026 · Verified purchase ★★★★★

Great widescreen monitor - Great size, color and resolution is amazing. Definitely a good buy

JohnWMar 13, 2026 · Verified purchase ★★★★★

Must be priced wrong - what a deal for any Gaming, the price for value is the best, you'll want this screen

CodyGMar 6, 2026 · Verified purchase ★★★★★

Monitor for sim racing - Best monitor I’ve purchased. Combo’d with a good arm for sim racing

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Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat