Cooler Master MM831 Review - Cooler Master MM831 Review

Cooler Master MM831 Introduction

The Cooler Master MasterMouse MM831 is a wireless gaming mouse with a PixArt PAW 3335 sensor providing up to 32,000 CPI (counts per inch). This mouse can be used wirelessly with a provided USB dongle or over Bluetooth, or connected using USB-C cable. The MM831 can be charged via USB-C, or wirelessly using a Qi charger. The Cooler Master GS750 headset stand I've reviewed prior has Qi charging built-in and makes for a great companion.

The MM831 has a two year warranty and sells for around $70 USD, with deals as low as $54.99 with rebates at retailers.

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Cooler Master MM831 Closer Look

The Cooler Master MM831 is packaged nicely utilizing the company colors — primarily black and some purple for the major color scheme. The primary features of the mouse are listed up front: RGB illumination, 32,000 CPI (counts per inch) or 16,000 DPI natively, Qi wireless charging support, and hybrid wireless tech (corded or Wireless/Bluetooth connectivity). The front opens up to reveal the mouse along with some images of the Cooler Master software on the flap. The back of the box goes into further detail over the mouse specifications in several languages. Included with the mouse is a USB-C to USB-A cable, and some paperwork.

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The MM831 is covered in different RGB LEDs. The scroll wheel lights up, as well as three diagonal bars between it and a DPI switch. The whole mouse is slightly textured, and the palm rest has a secret compartment held in place by four permanent magnets. The base of the mouse has a switch for Bluetooth, USB, or wireless modes. For gaming you will want wireless or USB modes for the best performance, as polling rate is capped at 125 Hz over Bluetooth. A pairing button sits oppositely across from the sensor. The MM831 has three Teflon feet, with one large foot in the front and two smaller ones at the rear.

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The front of the mouse has a recessed USB-C port, which is far superior to Micro USB connection. The palm rest of the mouse is removable thanks to four permanent magnets; taking it off reveals the USB dongle stored within. The magnets are strong enough that the palm rest feels solid without wiggling at all. The MM831 has four controllable RGB zones along with the DPI light section; here a translucent off-white plastic piece protects an RGB light at the bottom.

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Both sides of the MM831 share an RGB line that joins at the back of the mouse, giving the mouse a futuristic Tron look. The MM831 is designed for right-handed users, and works for both palm and claw grips. A rubber strip under the side buttons facilitates grip during gaming sessions.

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Cooler Master MM831 Software

The MasterPlus+ software works well once you have it installed, but at the end of installation I did encounter a bug where the software would detect my GS750 headset stand and ask to update firmware. Right after that completes it will force restart your PC with a simple warning that this will occur, with no options to stop it! You can use Task Manager to stop the RENEW and MasterPlus executables if you get stuck in a similar loop.

After successfully updating the firmware we can safely use MasterPlus, which gives you one convenient place to control all of your Cooler Master peripherals. The software gives you total control over your mouse buttons, RGB lighting, settings, macros, storage profiles, and wireless configurations. You do have to plug the MM831 in with the USB cable to see and control it from MasterPlus.

The performance tab makes it look like you can adjust the X and Y sensitivities separately, but you currently cannot unfortunately. The wireless tab at the end has sleep timing, LED brightness, and an option called LED Ring that can be turned on or off — this ring is referring to the surrounding LED strip that runs along the sides and back. Disabling the extra lighting and turning LED brightness down will of course prolong battery life during heavy use. At the top right, near the control buttons, is a toolkit button to enable launching MasterPlus software on startup, allow it minimize to the system tray on startup and/or closing, and changing the program's default language.

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Cooler Master MM831 Specifications

Product Number MM-831-KKOH1
Mouse Grip Type Palm, Claw
Mouse Material PBT Plastic, ABS Plastic
Mouse Color Black
Mouse LED Color 16.7 Million RGB
Mouse Sensor PixArt PAW 3335
CPI / DPI 400, 1200(default), 4000, 16000, 32000
Mouse Tracking Speed 400 ips
Mouse Lift Off Distance < ~2mm / Adjustable
Mouse Polling Rate 2.4G/Wire Mode: 125 / 250 / 500 / 1000 Hz (AP switch), BT mode: 125 Hz
Angle Snapping 10 Levels Adjustable (AP switch)
Mouse acceleration 40g
Mouse Processor 32 bit ARM Cortex M0 64Pin
On-board Memory 4MB
Mouse Switches OMRON
Mouse Lifespan 20 million
Programmable buttons 6
Connectivity Wired, 2.4 GHz, BT 4.2
Battery 800 mAh
Wireless Charging Follow Qi 1.2 Standard
Compatible OS Bluetooth: Win8/8.1, Win10, 2.4 GHz/Wired: Win7, Win8/8.1, Win10
Mouse Connector Gold-plated Detachable Type-C to Type-A
Mouse Cable Length Braided Cable, 1.8 Meters
Dimensions (L x W x H) 128.1 x 67.4 x 43.4 mm / 5.043'' x 2.654'' x 1.709''
Weight Mouse: 123g / 0.271 lbs (w/o Dongle & USB Cable), Dongle: 2g / 0.004 lbs, Cable: 30g / 0.066 lbs
Warranty 2 years
Product Mice
Series MM Series

Information Courtesy of Cooler Master @ https://www.coolermaster.com/catalog/peripheral/mice/mm831

Conclusion

The Cooler Master MM831 is a very solid, comfortable, and great-looking RGB gaming mouse! It works perfectly with the wireless USB dongle, over Bluetooth, or with the included USB-C to USB-A cable. The Qi charging capabilities of the mouse are a nice alternative to using the USB cable for charging, although a charger isn't supplied. The (sold-separately) Cooler Master GS750 headset stand makes a great accessory with its built-in Qi Charger and two USB 3.0 ports, plus both devices support the MasterPlus software.

If RGB lighting is an interest of yours, you will be pleased with the quality of the MM831's LEDs! The MasterPlus software meanwhile has a bunch of fun RGB illumination presets such as flame effects, cop lights, and more! Another great thing about this mouse is the ergonomics; whether you use palm or claw grips, you should be able to reach all of the buttons as both side buttons are likely within reach of your thumb. I've tested many mice and few are make it easy enough to reach both side buttons, and oftentimes you have to hunt for the DPI button, but with the MM831 I can use all of the buttons comfortably!

If you are looking for a great gaming mouse, the Cooler Master MM831 will fit the bill and currently sells for up to $75 USD, with rebate deals at some distributors bringing the price down as low as $54.99!