Performance

Cooler Master claims to dynamically detect the need for NKRO and switch from 6KRO to NKRO accordingly. I am not sure why this even needs to be a thing anymore, but suffice it to say that NKRO worked as intended, and that is all I care about in this section. Similarly, no key chatter was detected on all the keys using Switch Hitter.

Out of the box, the MasterKeys MK750 is in profile 1, which also lights up in Rainbow Wave mode on default, from left to right at medium speed. The side and bottom light plates match the keys adjacent to them, which works well, and you thus don't have to worry about having to match up colors manually.


I then manually set all keys to white using the software driver to test for color fidelity since RGB LEDs have a hard time depicting white as well, and it was more of a white with a pink hue to it in this case. In a separate test using the custom lighting mode, I tested for light bleed, and it was minimal here with the matte finish on the top plate not reflecting colors much either. We also see the non-uniformity in the backlighting of the various primary, secondary, and tertiary legends on the keyboard even at 100% brightness. This is more to do with the positioning of the legends than that of the LEDs themselves.

Here are some more of the lighting effects demonstrated. Note that Cooler Master has quite a few type-responsive effects as well, so overall, the keyboard does a decent job with the various lighting options available.


One thing I do like is that we have extensive onboard controls here, so if you are not a fan of installing software drivers, then so be it. The manual does a decent job of telling you how to operate the keyboard with functionality and lighting in mind, but of course, there are inherent limitations here. Macro recording and assignment in particular is much easier via the software driver, for example, as is getting finer control over the lighting. But a combination of both is always the best option, so props to Cooler Master for that.


As always, the sound of a keyboard is based on more than just the switch type. So when comparing sound clips, consider the keyboard as a whole. In this case, I have provided above an example sound clip of me typing on the Cooler Master MasterKeys MK750 sample at ~105 WPM. For context, you can find sound clips from other keyboards here, including those with tactile switches. I did bottom out here, although you can get around that with practice. The popular Cherry MX Brown switches used here have a rated actuation distance of 2.2 (+/- 0.5) mm, an actuation force of 45 cN (45.8 gf), tactile pressure force of 55 cN (56 gf), travel distance of 4.0 (+/- 0.5) mm, and a rated lifetime of 50 million keystrokes. In practice, these switches measured in at an average actuation force of 45.42 gf across twenty switches, which is really good, with a low standard deviation as well. Having experienced other switches, however, I am left wanting a more pronounced tactile bump and even smoother slider. While I can't blame Cooler Master for going with Cherry for the name-recognition, I also wish they would have given Topre another chance here.