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Cooler Master GM27-CQS 27" WQHD 165Hz Curved Gaming Monitor

Cooler Master GM27-CQS 27" WQHD 165Hz Curved Gaming Monitor

CCL Code: MON8521


Cooler Master GM27-CQS 27" WQHD 165Hz Curved Gaming Monitor


Key Features:

  • 2560 x 1440 Resolution
  • Lightning 0.5ms Response Time
  • 350cd/m2 Brightness
  • 165Hz Refresh Rate
  • FreeSync Support
  • Inputs: HDMI and Display Port
CCL Code: MON8521


Sorry, this product has been discontinued. We have found some similar products below.



Experience gaming on a new level with this immersive, curved gaming monitor that provides you with ultra-responsive visuals and clarity. The GM27-CQS delivers an impressive 0.5ms response time and 165Hz refresh rate, enhancing the visual performance for multiple gaming types. Benefit from a wide colour gamut, anti-flicker and low blue light mode, with the ability to mount the monitor to a wall.




  • Display: Stunning 27" 1500R Curved Screen
  • Resolution: Impressive wide viewing WQHD resolution
  • Response Time: Ultra responsive 0.5ms response time
  • Refresh Rate: Enhanced visuals thanks to the 165Hz refresh time
  • VESA Mountable: 100 x 100 mm


Become more focused than ever before! Thanks to the WQHD resolution you can improve gaming performance with rich and clear details, on a wide curved gaming monitor.

Sleek, modern and minimalistic, the GM27-CQS has the Cooler Master Halo Ring as the base of the stand and has an attached grip for wires if needed.

Benefit from multiple connectivity options, allowing you to connect all your devices. The monitor has built-in ports: 1x DisplayPort, 2x HDMI and 1x 3.5mm headphone jack.


Featuring an impressive, curved display, you can be immersed in your game without distraction. The 1500R curvature delivers an enjoyable experience by filling your field of vision without increased distortion compared to other curvature screens.

You can choose and customise your preferred HDR profiles based on the games you play and compete in, with the HDR performance you desire.

Take your competitive edge to a new level with a range of gaming assist functions. Thanks to the built-in Game Assist, you can choose between Timer, Crosshiar, FPS Counter and Black Stabilisation settings.



Screen Aspect Ratio 16:9
Screen Size 27 in
Screen technology VA
Colours Black
Brightness 350 Lumens
Contrast Ratio 4,000:1
Resolution (Native) 2560 x 1440
Resolution Type (Native) QHD
Response Time 0.5 ms
Response time 0.5 ms
Resolution (Maximum) 2560 x 1440
Aspect Ratio 16:9


Height Adjustable Yes




Headphone Ports 1
HDMI Ports 2
DisplayPort In 1


Case Colour Black

Key Features

Form Factor
Resolution Type (Maximum) WQHD
Screen Size Range 24 - 29 in
Base Colour Black
VESA Mountable Yes
Energy Rating
Main Colour Black
Contrast Ratio - Dynamic
3D Display
Built-in Speakers Yes
Hard Glass Coating
VGA Connection
DVI Connection
HDMI Connection Yes
BNC Connection
TV Tuner
Panel Technology VA
3D Ready
Power Source
LED Backlight
Disk Form Factor
Gaming Yes
Projection Aspect Ratio 16:9
Display Model in Showroom
DisplayPort Connection Yes
120Hz Refresh Rate
Screen Type Other
FreeSync Yes
144Hz Refresh Rate
Curved Display Yes
165Hz Refresh Rate Yes
200Hz Refresh Rate
180Hz Refresh Rate
240Hz Refresh Rate
Thunderbolt Connection
HDR Support
75Hz Refresh Rate
Built-in USB Hub
Refresh Rate 165 Hz
USB-C Connection

Graphics Device



Warranty 1 Year

Item Details

Manufacturer Cooler Master
Manufacturer Code CMI-GM27-CQS-EK
Alternative Part Number CMI-GM27-CFX
Condition New

Warranty Information

Warranty 1 Year

Manufacturer Information

Manufacturer Cooler Master
Manufacturer Code CMI-GM27-CQS-EK

Do you have you a question about the Cooler Master GM27-CQS 27" WQHD 165Hz Curved Gaming Monitor?

5.0 / 5 7 reviews

darren mills

2 weeks ago

Excellent all round


last month

Perfect 1440p monitor for what I needed


last month

An outstanding monitor for the money, coupled with my gaming set up, it displays consistently at 1440p, no flickering or screen burn, it is smooth and the image quality is impeccable. So happy with it

Alfie James

last month

Very good monitor has all the features of the expensive ones for way cheaper. Very good monitor from cooler master with high refresh, good looking visuals, height adjustable, swivel. The stand and actual monitor isn't made of plastic, some sort of metal and the HDR looks really good.

Fabio Dias

last month

Great value for money , Great build quality which is expected from CoolerMaster . So far loving this monitor, used to game on a 1080p monitor so this was a very nice upgrade . Great service from CCL aswell . Thank you

Suneel Kumar

last month

Great thanks

Derek Brunt

3 months ago

Absolute top quality exactly what I wanted