The Xtrfy M42 RGB is a gaming mouse with a high DPI sensor, adjustable weight, and RGB lighting. There are a ton of buttons and functions on this mouse; it will satisfy anyone who wants to try out different styles of play or who otherwise wants every possible function at their fingertips.

The Xtrfy M42 is a great mouse for people who play many first-person shooter games. Having a high DPI is important, but it’s not the only thing you need to look for when buying a gaming mouse. When you play a game that requires quick reflexes, like CS: GO, you want to have a mouse that you can control well. The Xtrfy M42 has five DPI settings, which you can easily switch between by pressing a button on the mouse.

Let’s digress for a moment to see how good this mouse looks. Sure, if you hate RGB, it might put you off, but few mice can match the Xtrfy M42 in terms of aesthetics. The M42 is the ambidextrous Xtrfy model that follows the ergonomic M4 from the Project 4 series and is a new contender for the title of best lightweight gaming mouse of all time. The M42 is small, handy, and has grooves in all the right places, making it suitable for different hand sizes and grips.

The M42 saves weight with its perforated hole design, and although you feel the holes, you forget them when you start playing. I don’t mind mice with holes because they usually give extra support on the sides. The mouse also protects the internal components from dust and sweat while still being very robust, and I must say that the build quality is excellent. My copy is pink, but the mouse is available in four other colors: black, white, Miami blue, and retro. The wide range of color options means that whatever your interior, you can find an M42 to suit you or, like me, a striking contrast for extra sparkle.

As the name suggests, the mouse is RGB, and it looks great on the entire front half of the mouse. In addition, the center of the scroll wheel and the Xtrfy logo inside the mouse is also RGB, adding to the beauty of the aesthetic.

Height and weight

When you take the mouse out of the box, you immediately realize that this is a small gaming mouse that can compete in size with the Glorious Model O- and the Cooler Master MM710. However, with my average hands, what surprised me was the comfort of the palm. It’s no secret that I used to exclusively use large ergonomic mice before switching to lighter options on the market. This mouse has essentially completed my transition, and I will not look back.

The M42 is 118 mm long and has a maximum height of 38 mm, regardless of the backplate used. The width of the handle is only 54 mm, the distance at the front is 57 mm, and the distance at the back is 63 mm. On the hand, the M42 looks like the SteelSeries Sensei but much smaller, and the ergonomic cutouts make it feel ten times better than the competition (for my hand). The mouse’s weight with the cable is only 60 grams, which is not the lightest on the market, but I think this is the optimal weight for gaming mice because anything lighter seems silly.

The M42 model has an optional backplate that makes the mouse feel a little better in your hand. I chose this replacement because I prefer mice with hand or claw grips, and I definitely see a difference: It feels a little closer to the MM710 in this configuration than the DM3 Mini, XM1, and Sensei. Although this mouse is similar to some ambidextrous mice, it doesn’t look like anything once you pick it up.

Shape and texture

As mentioned earlier, the M42 shares some features with other symmetrical mice on the market. For some, that’s the MM710; for others, the Zowie FK1/FK2, but Xtrfy feels like they’ve combined everything we loved about these two-handed mice into one model.

While the shape looks familiar, it is truly unique, with subtle curves and slopes that make it comfortable regardless of your grip style or hand size. Despite its small size, it fits perfectly in hand and is ideal for small and medium-sized hands to ensure a firm grip with the palm. The shape includes all styles, especially my hybrid palm/claw grip, and the front flap provides a good place for my ring finger.

The M42 is slightly tilted forward and has cutouts in the main release buttons for natural finger positioning. In addition, the shape of the back panel can be changed thanks to the modular design of the included back panel. This feature is brilliant for its price. One back lets you hold a low-profile mouse like the zowie FK, and the other back lets the bump stand out a little more in your palm, like the MM710, so that you can customize the mouse to your needs.

The texture of the M42 is smooth, perforated plastic, with holes in every inch of the mouse except the front half of the main buttons. The sides are narrow, creating a narrow grip width, but very easy to handle and still offer full control.


The M42 has a total of eight buttons: six on the top and two on the bottom. The main keys have a satisfyingly clear and responsive click, with little or no lateral shift. These include Omron’s standard 4-millisecond mechanical switches, designed for 20 million operations. Of course, pre-switching is minimal, there is no noticeable shift after switching, and there is almost no chance of accidental clicking or double-clicking; they are solid and work well.

The side buttons are probably some of the best I’ve seen in a long time, with minimal forward and backward movement. They are sturdy and wide, so I can easily get my thumb in the right position without thinking about it. The best thing about these side buttons is the tension; I can put my thumb on them without accidentally going off. Great job.

The scroll wheel is glossy and features rubber around the RGB band to improve grip. The middle button is actually quite strong, but I prefer that to avoid accidental pressure, which won’t happen with the M42. The tension in the scroll steps is excellent but not too strong and offers a very smooth tactile response.

Behind the scroll wheel is the DPI button that you normally see on many mice, but here it’s used for backlighting and RGB effects. Again, no software is required for this mouse. So you can change the speed and color by pressing two or four buttons. The DPI switch is located on the bottom of the mouse and has eight color codes ranging from 400 to 16000 DPI. The DPI levels are listed in the manual, but the LED flashes red twice when you reach 400 DPI to let you know you’re at the beginning.

Finally, under the back of the mouse is a polling frequency switch that allows you to choose between 125 Hz, 500 Hz, and 1000 Hz for the M42.


The cable is Xtrfy’s EZcord, their name for a lightweight cable, and it’s another flexible cable for the latest mice that I love. The 1.8m braided cable is slightly stiffer than the Cooler Master MM710, but Xtrfy said it was aimed at longevity, so it should last quite a while.

The cable housing on the front of the mouse has a slight upward slope to reduce cable drag in conjunction with the mouse bungee. The only drawback I can mention is that the cable could have been a little softer, but the color matches the rest of the mouse, it’s high quality, and when bungeed, the mouse is still wireless.

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