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Corsair M75 Wireless Gaming Mouse Review

Christopher Coke Posted:
Hardware Reviews 0

Corsair just launched its latest gaming mouse, the M75 Wireless. It’s ambidextrous in the truest sense, features swappable side buttons, high-speed wireless with a 2,000Hz polling rate, and an ergonomic shape tailored for speed. It’s a heavier take on the M75 Air Wireless which launched earlier this year, a gaming mouse for gamers not sold on the ultralight craze. At $129.99, it’s expensive but its performance is hard to argue with.


  • Current Price: $129.99 (Corsair)
  • Wireless Connectivity: Hyper-fast, sub-1ms 2.4GHz SLIPSTREAM CORSAIR WIRELESS TECHNOLOGY, Bluetooth® 4.2 + LE
  • Sensor: CORSAIR MARKSMAN, 26,000 DPI with 1 DPI resolution steps, 650 IPS tracking, up to 50G acceleration
  • Programmable Buttons: 5
  • Onboard Profile: 1
  • Backligh: 2 zones
  • USB Report Rate: Up to 2,000Hz hyper-polling
  • Battery Charging: Charges via USB to computer
  • Battery Type: Built-in lithium-polymer, rechargeable
  • Battery Life: 
    • 2.4GHz SLIPSTREAM: 65hrs with RGB on.
    • Bluetooth®: 120hrs with RGB on.
    • 2.4GHz SLIPSTREAM: Up to 105hrs with RGB off.
  • Bluetooth®: Up to 210hrs with RGB off.
  • Color: Black
  • Mouse Feet: 100% PTFE
  • Wired Connectivity: USB 2.0 Type-A (Type-C to Type-A cable)
  • Cable: 1.8m / 6ft
  • iCUE (Software): Supported
  • Dimensions: 128(L) x 64.6(W) x 42(H) mm / 5.04”(L) x 2.56”(W) x 1.64”(H)
  • Weight (w/o cable and accessories): 89g / 0.196 lbs.
  • Warranty: Two years

Corsair M75 Wireless - Design and Highlights

When it comes to FPS mice, it seems like they’re only getting smaller. In the pursuit of lighter and lighter weights, the highest regarded competitive mice often force you into claw or fingertip grips. And while that might me the gateway to the best accuracy, what if you’re a casual player that doesn’t want to rethink his whole grip? That’s where the M75 Wireless comes in. 

The M75 Wireless is a follow-up to the M75 Air Wireless which was released late last year. The mice have far more in common than they have different. They’re both six-button symmetrical mice. Both share the same shape and dimensions, so should feel identical in the palm. Both feature great optical sensors and switches and fast 2,000Hz polling rates. 

But while the AIR was clearly targeting the competitive FPS crowd, the standard M75 Wireless is a more inclusive go, offering options for gamers willing to trade some weight in exchange for battery life and features. The M75 weighs 89 grams, up from the 60 grams of the AIR, but offers nearly double the battery life. Over SLIPSTREAM Wireless (2.4GHz), it’s rated for 65 hours of playtime with RGB on, 105 hours with it off, and up to 210 hours over Bluetooth. If you do run short, it also sports fast charging and can completely recharge in around an hour and a half.

The M75 is also truly ambidextrous instead of just symmetrical like the AIR. It’s set up for right handed users out of the box with two magnetic thumb buttons on the left side. If you’re a lefty, these buttons can be removed, replaced with flat plates, and an alternate set added to the right side. It's important to note that these plates don't stop the buttons beneath them. They're still clickable if you try. I wish there were a way to make them unclickable to completely prevent misclicks, but they can also be unmapped in Corsair’s iCUE software to effectively disable them. 

The mouse also offers RGB lighting for a bit of extra flair. A Corsair sails logo decorates the bottom of the palm rest with two vertical stripes on either side. There’s also a bit of tail light underflow below the palm rest, though it’s subtle.

The mouse features top-tier specs. Its left and right clicks use new optical button sensors that are rated for 100 million clicks each. Since there are no mechanical contacts, the dreaded “double click” issue that plagues dying gaming mice should theoretically be impossible. They have good tactility and a nice, deep sound.

It uses Corsair’s latest MARKSMAN optical sensor. It scales all the way to 26,000 DPI and was very accurate in my testing. It’s rated for a top speed of 650 inches per second with up to 50G of acceleration. Try as I might, I wasn’t able to get this sensor to spin out and still felt accurate when playing with high DPI and low in-game sensitivity.

One of the more unique features I’ve seen is that it offers the ability to fine tune the DPI without software. The bottom of the mouse houses the DPI and Power/Connectivity buttons. Holding the former and clicking the side buttons increases and decreases the sensitivity in small 50 DPI steps. While this feature seems small, it means that you can effectively ignore iCUE and use the M75 as a plug and play mouse if you don’t care about remapping or programming its lighting. 

The mouse features tri-mode connectivity and can be used while being charged. 2.4GHz is clearly the way to go if you’re playing games thanks to its lower latency, but Bluetooth worked flawlessly for me outside of games too. I found it simpler to connect over Bluetooth to my laptop, for example, because of its limited ports. Connecting is fast and reliable once it’s set. 

Corsair M75 Wireless - Performance 

Actually using the mouse is quite nice. I’m used to smaller and lighter mice these days, the ASUS ROG Harpe Ace and HyperX Pulsefire Haste 2 Wireless acting as my daily drivers. Compared to these mice, the M75 is longer and its size is immediately noticeable in the hand. It feels good, natural even, but if you’re used to smaller mice, you’ll probably need an hour or two to adjust.

Its size is one of its strengths, in my opinion. While so much of the market is focused on mice that are small and as light as possible, it strikes a middle ground between the two. Its contour is low profile enough that it still feels smaller than most palm grip mice. But it’s also long enough that palm grip is a viable option. Its weight, while not the lightest, is still light enough for comfortable palm and fingertip grip styles. It’s an easy jump from the G502 (bigger) and an easy jump from the ROG Ace (smaller). It’s an FPS mouse for the every-gamer.

And on that token, it succeeds well. Its specs are top-tier, which means you could ride this mouse from novice gameplay straight up to professional level. The mouse clicks feel good to use, even if I personally prefer the higher-pitched click of some of Logitech’s mice. They’re a sight better than the G502X, however, which I’ve grown to not care for over time with their metallic ping. 

The mouse could be a bit slippery depending on how you hold it. There are no grips included in the box and the shell is standard plastic. I didn’t have a problem with this because I use a hybrid claw grip that squeezes the sides but it’s a possibility nonetheless.

The wireless performance is expectedly great. SLIPSTREAM is very good and offered clicks that felt instantaneous in Battlefield 2042. 2,000Hz polling isn’t something I’m sensitive to, really, but it’s nice to know that it’s offering such fast connectivity. Between the two, I can’t blame a missed shot on my connection.

I also appreciate that Corsair has designed the M75’s RGB to act as an indicator light. It will flash and change colors depending on connection status and battery level. With a 65 hour battery, it lasts a week or two for me, but I like to keep an eye on it and plug it in before it ever runs dry. 95 minute fast charging is a great value add to keep that wire away as much as possible too. 

The one area where you might find it lacking is button count. On a mouse like this that’s already pushing weight to the backburner, it would be great to see an extra programmable button or two or even a tilt-click mousewheel. As it stands, you might find it button-shy for MMORPGs. But then, this really seems catered to FPS first and other genres after, so it didn’t really claim to be for skill-heavy MMOs either.

The side buttons are another area I have quibbles about. They're very slim and tight to the frame. It takes a bit to get used to identifying them with your thumb and even when you do, I still found myself feeling uncertain at times. Even though they attach magnetically, there are no other options in the box. You have flush plates to cover them and a set of standard buttons for the other side. Changing them can also be difficult because of how slim they are. I have to use a small paper clip to get under the edge on my sample. But since there are no alternates, you won't really be changing them either, so it's ultimately a small issue.

Final Thoughts

Overall, I think Corsair balanced the M75 Wireless well. Its blend of still-light weight and additional features compared to the M75 AIR Wireless make it a viable alternative for lefties and people who like the shape but don’t care as much about being as light as possible. My biggest hang-up is its price. At $129.99, this mouse is expensive and in direct competition with some exceptionally compelling options. Few of those are truly ambidextrous or so effectively support all three grip styles, so its higher price does net you some extra benefits. At the end of the day, if you can afford it and prefer a larger mouse, it’s a solid choice.

The product described in this article was provided by the manufacturer for evaluation purposes. Some articles may contain affiliate links and purchases made through this will result in a small commission for the site. Commissions are not directed to the author or related to compensation in any way.

7.5 Good
  • Supports all three grip styles well
  • Truly ambidextrous
  • Decent battery life
  • Excellent tracking with onboard DPI customization (not just a DPI switch)
  • Optical switches and 2,000Hz polling make it very responsive and low latency
  • Can be a little slippery
  • Included cable is a standard braid, not paracord
  • Magnetic side buttons are difficult to remove
  • Expensive


Christopher Coke

Chris cut his teeth on MMOs in the late 90s with text-based MUDs. He’s written about video games for many different sites but has made MMORPG his home since 2013. Today, he acts as Hardware and Technology Editor, lead tech reviewer, and continues to love and write about games every chance he gets. Follow him on Twitter: @GameByNight