Performance of a mouse is a mix of subjective impressions and actual technical data. Even if the data doesn’t necessarily line up to being the “best” from a technical standpoint, you may enjoy the mouse more than others. There are a lot of things to consider. Using MouseTester we can test the actual accuracy of the sensor, giving us a part of the larger picture of performance.

Cooler Master MasterMouse Pro L

Here we see how well it tracks. The cpi, set at 264, is what I had it set at for my preferred sensitivity. Generally there should be a straight line with the dots corresponding to that line. The dots are where the mouse is actually while the line represents the motion I was attempting to create. In general it’s accurate, following my quick motions with only minor issues when I changed direction. That’s the usual point where mice of any competency get a bit tricked up. It’s not quite as bad here as it might look.

Cooler Master MasterMouse Pro L

Of course we have to test the actual report rate of the mouse, ensuring that it’s well within the millisecond, or 1000Hz polling time that’s advertised. The outliers seem to correspond with the change in direction pointing to the mouse being just a tad slower when there’s more information passing through. Overall not a terrible result. The spike at the beginning was when I began the test and is just an anomaly.

In the real world I found it very accurate and actually noticed a slight increase in competency in FPS games. The stock shape is a bit too low profile for my liking, though your preference may vary. It’s also a bit too light than I usually enjoy though that lightness made it a little easier to heft around quickly. Not that most mice are ever that heavy, but a bit more sturdiness is appreciated. That isn’t to say it isn’t built well. I’ve slammed the MasterMouse Pro L down a few times accidentally (because it’s so very light) and it’s still working like a champ.

One thing I did notice is that it wasn’t friendly on all surfaces. It didn’t glide the best on my cloth mouse mat, though it did wonderfully on harder surfaces. This just means you have to tune your gaming area a bit more. Still a small issue for some, though.

Cooler Master MasterMouse Pro L


The concept is phenomenal. At least in theory. And the underlying mouse itself is solid enough to be an easy recommendation. The MasterMouse Pro L hits all the right buttons, being customizable physically and with what you want the buttons to do. The software is easy to use and you can easily set your favorite color and the DPI steps without issue. Even better, go 3D print off a mold from your hand so it fits like a glove and is an extension of your very will. It’s accurate, built well and doesn’t cost an arm and a leg. It’s nearly perfect. It just has a few small niggling issues such as a the weight being a bit low, and it not gliding as efficiently as I’d like. A proper mousing surface can fix that, however. At 59.99, it’s slightly hard to ignore for all the actual functionality it represents. Simple is somethings best.

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Cooler Master MasterMouse Pro L Review
An innovative mouse with very few frills or unnecessary things. It's more modular than anything on the market and packs a good sensor with quality materials
Build Quality85%
What's Right
  • Comfort
  • Customization
  • Accuracy
What's Wrong
  • Too Light
  • Need More First Party Customization
89%Overall Score
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