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Cooler Master MM731 Wireless Review

Rating: 8.5.

Cooler Master is known for its PC parts and components but the company doesn’t just make coolers and cases, they also make a wide range of peripherals. Today we’re checking out the Cooler Master MM731 wireless mouse that has optical switches, a PAW3370 sensor and an ultra-lightweight construction. Coming in at £89.99, is it really worth nearly £100? Let’s find out.

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  • Grip Type – Palm / Claw (we think Fingertip grip also works well)
  • Material – ABS Plastic / Rubber / PTFE
  • 7 million RGB
  • PixArt PAW3370 Optical Sensor
  • DPI 400-800-1,200(Default)-1600-3200-8000-19000
  • 400 IPS
  • Lift Off Distance: < ~2mm / Adjustable
  • Polling Rate: 2.4GHz/ Wired Mode: 1000 Hz/ BT mode: 125 Hz
  • Mouse Acceleration 50g
  • Optical Switches, 70 million
  • Buttons: 6
  • Connectivity: Wired / 2.4GHz / BT 5.1
  • Software: Cooler Master MasterPlus+
  • Detachable Ultraweave Cable, 1.8 M (Type-C to Type-A) with Gold-plated
  • Dimensions: 122.3 x 69.0 x 39.1mm
  • Weight: 59g (w/o Dongle & Cable)

You can purchase the Cooler Master MM731 for £89.99 from Overclockers UK HERE!

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  • Super lightweight at 59g.
  • Optical switches with 70m click lifespan.
  • Excellent sensor.
  • Very comfortable design.
  • Great performance all-round.


  • Back heavy, causes the back to fall down when lifted and moved.
  • Software isn’t resizable, full-screen or windowed full-screen only.
  • No battery percentage options.

KitGuru says: The optical switches worked flawlessly, the sensor offers great specs and great performance, connectivity options are excellent, the design and ergonomics make the mouse very comfortable for all grip styles during my use and the battery life is excellent too. There's room for improvement but, overall, the Cooler Master MM731 is a good buy.

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Rating: 8.5.

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