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Cooler Master MasterMouse MM520 Gaming Mouse Review (Page 1)

Cooler Master MasterMouse MM520 Gaming Mouse Review

Cooler Master's MasterMouse MM520 gaming mouse gets examined but is it one to avoid?

By: Chad Sebring from Dec 26, 2017 @ 8:52 CST
TweakTown Rating: 79%Manufacturer: Cooler Master

Introduction, Specifications, and Pricing


Cooler Master has seemingly killed the Storm series of peripherals in favor of names like Master and Maker in titles these days, but this is no indication that they are not above revisiting older ideas. What was once referred to as the CM Storm Spawn has undergone a transformation, which brings it up to today's level of what is expected in a gaming mouse. At the time, the Spawn was well appointed, but by today's standards, it just would not fly, no matter how attractive that ruby red top cover was. With just one glance, we find that we can see at least eight things about the design which have been improved upon, and should make the resurgence of the Spawn a success for Cooler Master.

The Spawn did have quite a few limitations. It came with no LED lighting at all for starters, which has been addressed. The DPI was quite low, ordinary Omron switches were used, the sensor is a bit long in the tooth now, the onboard memory was not all that great in size, the scroll wheel was cheap looking and made of plastic, and even the weight changes with the newer version. All of these things fall into categories of improvements or fulfilling the desires based on the latest trends in what the market bares. Cooler Master may, in fact, be reissuing a product that did very well for them in the past, but it is easy to see they are not asleep at the wheel, trying just to put lipstick on the same old pig here.

Today we have a look at one of three mice to be introduced into the MasterMouse lineup. The reason that three mice were presented at the same time is that Cooler Master is striving to suit all grip styles, and the one we have now is built with the intention to be form fitted to claw grip and palm grip users. With more than enough changes afoot to keep the masses happy, we feel we should get right down to brass tacks and see just what the MasterMouse MM520 from Cooler Master delivers, and find out if it indeed should be your next mouse.


The MasterMouse MM520 also goes by the model number SGM-2007-KLON1, and as we just mentioned, it is intended to be used by claw and palm grip gamers. The MM520 is made of plastic, and there is a grip pad on the right made of rubber, but on site, they also make mention of using PBT plastic for the main buttons, so there is no wear over time. Rather than red, the color of the MM520 is black, M14 black to be precise. Dimensionally, the MM520 measures in at 78.5mm wide, it is 118mm long, it is 29.5mm tall, and without the cable, it weighs only 101 grams. To help out with longevity, where many others offer only a year of coverage, Cooler Master backs the MM520 with a two-year warranty.

The mouse also sports RGB LEDs which are shown to deliver over sixteen million colors, which is a huge leap from the Spawn, with no LED illumination, at all. The sensor used is the PixArt PMW-3360 optical sensor and will top out at 12,000 DPI. Adjustments can be made in 100 DPI increments, and there are four DPI levels which can be set for on-the-fly changes. The sensor is also capable of tracking movement at 250 IPS at fifty times the force of gravity, the LOD is set to 2mm, the polling rate is 1ms, there is no built-in acceleration, and angle snapping can be turned on or off. In control of it all is an ARM Cortex M0 32-bit MCU, which provides five profiles for storing customizations, and even delivers 512KB of onboard storage. There are six buttons in total, two of which are backed with twenty million click Omron switches, and lastly, the cable is rubberized, it is 1.8 meters in length, and does come with a gold-plated USB 2.0 connection.

At a glance, and after progressing through the specifications, we feel that the MasterMouse MM520 has much going for it, and Cooler Master could have just as easily asked somewhere in the range of $80 for this device. However, this is not the angle they wished to pursue. When it comes to obtaining the MM520, all you will need is $49.99 at the ready to obtain one, and we also see that pricing is the same no matter where we looked to obtain it from. Knowing what we do so far, you will be hard-pressed to find a mouse similar in design, with this amount of features and functionality, at this price point. The Cooler Master MasterMouse MM520 RGB Gaming Mouse is already off to a great start, but let's get to the meat and potatoes of it all, and see if everything stands up to the rigors of testing.

Chad's Peripherals Test System Specifications

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