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40 inch ultrawide gaming monitor in metallic black with RGB lighting, flat IPS panel and narrow bezels

MSI

MSI MAG401QR 40" 21:9 UWQHD 155Hz IPS gaming monitor

SKU CH-GXGG-TE0AB MPN MAG401QR

A 40-inch 21:9 ultrawide IPS panel delivers 3440 x 1440 resolution at 155 Hz with 1 ms MPRT, 400 cd/m² brightness, 1000:1 contrast and 1.07 billion colours for tear-free gaming

  • Cabinet ColorMetallic Black - RGB
  • Screen Size40"
  • WidescreenYes
  • Glare ScreenNon-glare
  • PanelIPS
  • Display TypeUWQHD
  • Ultrawide 21:9 40-inch screen expands peripheral view
  • 155Hz refresh rate with 1ms response time delivers smooth motion
  • IPS panel with 178° viewing angles keeps colours consistent
  • DisplayHDR 400 at 400 cd/m² adds highlight detail
  • 07 billion colours and 1000:1 contrast render rich images

40-inch 21:9 UWQHD gaming monitor

The MSI MAG401QR is a 40-inch ultrawide display built for immersive gaming. Its 3440 x 1440 resolution and 21:9 aspect ratio expand the field of view in supported titles. A 155Hz refresh rate and 1ms MPRT response time target fast-paced competitive play. The flat IPS panel covers wide viewing angles for consistent colour.

Suited for ultrawide enthusiasts.

This monitor suits players who value horizontal space for simulation, strategy or multi-window workflows. The 40-inch width demands significant desk depth and a graphics card able to drive 3440 x 1440 at high frame rates. Users preferring higher pixel density, curved screens or dedicated console HDMI 2.1 features should consider other models.

155Hz refresh rate with 1ms MPRT

The single spec that decides fit is the 155Hz refresh rate paired with a 1ms MPRT response time. It determines whether motion clarity matches competitive expectations on a 3440 x 1440 panel. Verify your GPU can sustain such frame rates in the games you play before purchasing.

Highlights

  • Ultrawide 21:9 40-inch screen expands peripheral view
  • 155Hz refresh rate with 1ms response time delivers smooth motion
  • IPS panel with 178° viewing angles keeps colours consistent
  • DisplayHDR 400 at 400 cd/m² adds highlight detail
  • 07 billion colours and 1000:1 contrast render rich images

Specifications

BrandMSI
ModelMAG401QR
Part NumberMAG401QR
Cabinet ColorMetallic Black - RGB
Screen Size40"
WidescreenYes
Glare ScreenNon-glare
PanelIPS
Display TypeUWQHD
Adaptive Sync TechnologyFreeSync Premium (AMD Adaptive Sync)
Resolution3440 x 1440 (2K)
Viewing Angle178° (H) / 178° (V)
Aspect Ratio21:9
Brightness400 cd/m2
Contrast Ratio1,000:1
Response Time1ms (MPRT)
Display Colors1.07 Billion
Monitor Pixel Density0.2697mm
Refresh Rate155Hz
VESA Certified DisplayHDRDisplayHDR 400
Curved Surface ScreenFlat Panel
HDMI1 x HDMI 2.0b
DisplayPort1 x DisplayPort 1.4
Video Ports1 x DisplayPort 1.4a / 1 x USB-C (DP Alternative) / 2 x HDMI 2.0b
USB Ports1 x USB 2.0 Type-B Upstream / 2 x USB 2.0 Type-A Downstream
Power ConsumptionPower On: 90W
Power Saving/Off: <0.5W
Stand AdjustmentsTilt: -5° ~ 20°
Built-in SpeakersNo
Built-in WebcamNo
VESA Compatibility - Mountable100 x 100mm
FeaturesUltrawide massive 40inch 21:9 screen
Flat screen for eSports experience
AMD FreeSync Premium
IPS Panel for best response in gaming
Super narrow bezel for max viewing size
MSI Gaming OSD
RGB gaming LED finishing
HDR 400 provides eye-catching detail in gaming
2K Res for best detail in game experience
Dimensions20.88" x 37.21" x 11.40" w/ stand
16.38" x 37.21" x 3.30" w/o stand
Weight22.70 lbs.
Package ContentsPower Cord, DP/HDMI Cable, Power Adapter
Shipping weight12.77 kg
Package size1168 × 514 × 165 mm

Questions about this item

Will this 40-inch ultrawide fit on a standard VESA mount?

The monitor uses a VESA-compatible mounting pattern, so it will attach to any standard 100 x 100 mm arm or stand.

Do I need a specific graphics card to use the 155 Hz refresh rate?

Any modern GPU with DisplayPort 1.4 or HDMI 2.0 bandwidth can drive 3440 x 1440 at 155 Hz; check your card's port version.

What cables come in the box for the KVM and USB hub?

The package includes a USB-C upstream cable and a DisplayPort cable for video; the hub ports are ready for your peripherals.

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