Corsair Scimitar Pro RGB and MM800c RGB Polaris review: The ultimate rainbow lightshow

Corsair Scimitar Pro RGB

When I first saw Corsair’s Scimitar mouse a couple of years ago, I thought it was the most bonkers-looking thing I’d ever seen. Just like its equally mad successor, the Scimitar Pro RGB I’ve got here, it had 12 mechanical buttons on the side. Twelve! This is a calculator, not a mouse, I thought to myself at the time. How could anyone possibly need 12 individual mouse buttons?

Of course, both the Scimitar and the Scimitar Pro RGB are often trailed by the words “MOBA” and MMO”, and I’m sure there’s a handful of such players who might find this kind of thing useful. Admittedly, neither genre is my particular forte, so I’m largely going to be looking at the Scimitar Pro RGB in the context of an ordinary gaming mouse. And just in case its four RGB lighting zones weren’t enough for you, I’ve also got Corsair’s MM800c RGB Polaris mouse mat here as well, which has – wait for it – FIFTEEN RGB lighting zones that can sync with the same theme on your Scimitar Pro for the ultimate desk-side rainbow show.

Starting with this ludicrous mouse design, then, the Scimitar Pro RGB looks almost exactly the same as its predecessor. Measuring 42.4mm across and weighing a hefty 147g, its soft-touch plastic chassis is too wide and heavy for my tastes, but apart from the slightly rough feel of those aforementioned side buttons under your thumb, it’s still just about comfy enough for everyday use.

Corsair Scimitar Pro RGB right side

I do quite like the moulded, rubbery grip on the far right, though. The groove itself is just the right size for my little finger to rest on during times of idle scrolling around the web, but the way the grip slopes right down to the belly of the mouse means it’s also very easy to slide said little finger onto the mouse mat to use as an anchor when tapping one of its plentiful side buttons with your thumb.

I must admit, my thumb’s not used to engaging in such intense mouse button workouts, and trying to reach the buttons nearest to me numbered 10-12 quickly became quite tiring and uncomfortable. Fortunately, Corsair’s planned ahead for those of us with fossilized thumbs, as you can actually move number pad by up to 8mm along the side of the mouse using its bundled key slider tool. Just turn the mouse upside down, poke the tool into the small hole beside the sensor and twist to loosen it (as shown below), and you’ll then be able to slide the pad forward or back into whatever position you please.

This gives the Scimitar Pro RGB a welcome degree of flexibility, but I suspect those with smaller hands will find it’s still not quite enough, as pushing the number pad into a position where I could comfortably hit the nearest buttons without performing painful contortions with my thumb meant I could no longer reach numbers 1-3 farthest away. Eventually, I settled on somewhere in the middle (even if numbers 10-12 still required a bit of arching thumb gymnastics), but given how unlikely it is you’ll actually need all 12 buttons, I’d prioritize making it comfortable for the buttons that naturally fall under your normal thumb position.

Corsair Scimitar Pro RGB underside

As if 12 buttons wasn’t already enough, you’ll find two more for your clicking pleasure just below the scroll wheel. The top one lets you switch between your various onboard profiles, while the lower one changes your DPI or sensitivity settings, the latter of which is handily colour-coded by the vertical RGB strip closest to the number pad – the only one that’s actually fully in view when your hand’s on it.

Three profiles and five DPI speeds come pre-installed out of the box, but you can always use Corsair’s Utility Engine (Cue) software to add, remove or make more of them and customise the function of each button with your own recorded macros. The Scimitar Pro also has a teeny bit of onboard memory this time round so you can save all your favourite settings and lighting effects and take them with you to cool things like LAN parties and tournaments abroad and such like.

The biggest difference between this and the original, however, is the Pro’s brand-new 16,000 DPI optical sensor. Now, no one in their right mind would ever need, or indeed be able, to use a DPI setting of 16,000 unless you frequently operate faster than the speed of light, but the neat thing about the Scimitar Pro is that you can adjust each of your chosen speeds by single increments. Most other mice often force you to make do with increments of around 100 or so, so if you want to be really pedantic precise about your favourite DPI settings, then the Scimitar Pro can absolutely cater to your very specific needs.

Corsair Scimitar Pro RGB and MM800c Polaris

The Scimitar Pro can also be calibrated for any given mouse mat using Cue’s in-built surface tool. Ironically, it didn’t work too well with Corsair’s MM800C Polaris RGB mouse mat when I first set it up, but a quick walk through its calibration process put it right as rain in just a couple of seconds.

That said, if I thought the number of people who might need 12 mouse buttons was small, then I’d imagine there’s an even tinier pool of people who’d be willing to pay £50/$50 for a mouse mat, especially when, in the UK, that’s practically as much as the Scimitar Pro itself (in the US, the mouse costs around $80). The Polaris can, of course, be used with other, more or less expensive mice, but you’d have to really, and I mean really, love RGB effects to justify spending that amount of money on it. For what it’s worth, though, there’s no denying it’s a nice bit of kit.

Measuring a sizable 350x260mm, the firm, rubber grip on the bottom means it’s extremely difficult to accidentally elbow out of place when you’re in a frenzied Plunkbat match, and the USB port at the top lets you plug in your mouse for easy access, saving you from taking up another USB port on your PC. The surface itself also feels perfectly nice under the mouse, but I wouldn’t say it was any more or less slippy than my £6 Roccat Kanga mat – something I’ve also never managed to send flying during those heated moments of chicken dinner glory.

Corsair MM800c RGB Polaris

I guess if you’re going all out on RGBs, then you might as well go the whole hog and get the Polaris as well, but come on. £50? You can’t see it, but I’m giving you a long, hard stare right now while you contemplate spending that amount of money on a rainbow coloured piece of cloth.

I might be more inclined to say it was worth the money if, say, it did wireless Qi charging like Corsair’s upcoming MM1000 (my phone doesn’t even support wireless Qi charging, but I’d give anything to be able to charge it on my desk and not have to worry about my cats chewing through yet another cable and plug combo), but when its main attraction is a thin strip of LEDs round the side, I don’t think I’ll be swapping it for my £6 Kanga any time soon.

As for the Scimitar Pro RGB, I’m sure there are people out there who could put all twelve buttons to good use and not have to dislocate their thumb in order to do it, but for me, it’s just too big and bulky for the type of games I generally play. Instead, I think I’ll be sticking with the Steelseries Rival 110 for now, but if you do want a mouse with stupid levels of flexibility and don’t mind its overall heft, then the Scimitar Pro RGB certainly won’t disappoint.


  1. wackazoa says:

    I looked at the Scimitar. Like you did I had trouble with the side buttons and my thumb. I got the Razer Naga Hex v2., only 7 buttons, but the buttons are in a circle pattern. I use it for MMO’s, MOBA’s, and actually FPS games (the higher numbers are mapped to prone and the map for easy use). It is easy to use and pretty comfortable with medium sized hands.

    If you need a multi button mouse Id recommend that. Although I have heard some say that Razer is terrible because of the software needed to make full use of the mouse. And I respect that. Synapse was a bit of a pain at first.

    • gou says:

      same sort of story, the space in the middle of the buttons on the naga is the perfect resting point for my thumb which i grip quite hard with, there is nowhere to put my thumb on the corsair without actually inadvertently pressing the buttons

  2. blankname says:

    Why is “Plunkbat” linked? Is the thought that people may not know what it refers to? Surely that can’t be considering how popular it is.

    • Trooper says:

      It’s probably because the average player refers to it as “PUBG” and not “PlUnkBat”, well that would be my guess.

      • Xipheas says:

        I’d assume it is so that this article appears in the Steam newsfeed for the game itself, thus encouraging new people to read the article.

  3. vranacat says:

    I’ve been using a mouse with a 12 button array on the side for years now, and I honestly have trouble using anything else at this point. Although they are aimed at MMO players primarily, it’s been my experience that they’re quite useful in a wide variety of games simply because the number row is the default buttons for most game developers to use for any type of skill or item shortcuts. Having a 12 button array means that I can just set those 12 buttons to mimic the number row and then forget about it, whether or not the game in question uses the whole row about 90% of the time, instead of bothering to rebind keys for every title. The grip is a bit unusual when you first start using it, but it becomes comfortable pretty quickly, and it’s miles better than trying to reach across the keyboard to hit the = key.

  4. aircool says:

    How could anyone possibly need 12 individual mouse buttons?

    I currently use a Logitech G600, I think it’s got about 23 buttons, all of which I use. The great thing about the programmable software (I also use a G13 and G810) is that it can be programmed for any software. In my case, the mouse and G13 are used primarily as Cubase controllers alongside a MIDI keyboard, but I use it a lot in other software.

    I used to have the old Razer MMO mouse, but the microswitch under the main mouse button wore out. Finding a replacement wasn’t easy and the G600 doesn’t have a nice, high friction surface on the top or side, so I had to stick rubber pads in the most used contact areas.

  5. edna says:

    Whilst doubtless trolling, I would just like to formally object to this comment.

    • Katharine Byrne says:

      Your formal objection has been logged and the offending comment has been dealt with :)

  6. drewski says:

    I can’t even train my brain to use one mouse side button, let alone 12.

    • Ghostwise says:

      I would imagine that people with a long habit of using their thumb on smartphones find it easier than those who don’t.

  7. Imadoctornotadoctor says:

    Speaking personally, I couldn’t give two tiny little shits about an article regarding the cutting edge gaming mice, cause it’s not relevant to me and I couldn’t afford them anyway.

    Still checked out the article because Katharine writes sufficiently well to make me want to read it despite aforesaid tiny-little-shit-not-giving.

    Now, of course, I have the extra motivation that it will presumably make obnoxious wee wanks like rawed even more infuriated that people dare to read articles by somebody he personally finds sexually unattractive, erotic titan that he is.

    OH NO

    • waltC says:

      Haven’t seen anything yet to beat this:

      link to

      1K-16k *fully selectable* DPI, obligatory array of side buttons, selectable 125HZ to 1000HZ polling, thorough and complete control software, enough RGB bling to keep Santa happy at Christmas…for …$35. No that is not a sale price or a misprint. $35.

      My wife owns the 601 for the last year, I’ve had the 901 for the last six months. Why pay more for marketing and advertising?

    • waltC says:

      Suggestion for Imadoctornotaquack (couldn’t resist the play on your user name here…;)), once you go to a mouse like I have linked to here you will never, ever go back to one of those hideous, lo-res, photo-optical mice–and believe it or not, the difference might be as low as $10 and very possibly the cost of the mouse I have linked will be *less* than some really, really crummy optical mice currently being sold. (Of course you might find a *choke* “ball mouse” [holds nose] in some PC shop for a couple of bucks if you really want to go Scrooge.)

      More importantly–the mouse I recommend here is a *laser*, too, instead of optical, “optical” being a much more primitive, inefficient scanning technology. The basic difference between a laser mouse and an optical mouse, aside from the scanning precision advantages of the laser (the laser is demonstrably superior), is that the laser mouse is just as effective on a solid-white, perfectly smooth tiled surface *or* directly on top of a 100% reflective *mirror*! (Whereas the optical mouse demands a surface with contrasting colors and irregularities in order to function–won’t work on my desktop or on a mirrored surface.)

      Huge difference. My current table top is a tiled, smooth, white surface–the mouse works splendidly directly on it. Not going to happen with an optical. Besides, with optical mice we get that really ugly “pink light from underneath” artifacting going on…;) [In the days when optical mice were new, the “pink light district” at the bottom of the mice was considered sort of “high tech”. These days it is just annoying…;)]

      Of course, maybe you happen to not need a mouse of any kind at all. In that event, you may safely disregard my above supremely helpful (and free) advice…;)

  8. Trooper says:

    I have been using the Scimitar (original) for a little over 12 months and to be honest I love it. I don’t use all 12 side buttons, never have but, I do use a fair few of them depending on what game I am in the middle of.

    If you have small hands then I would probably steer clear of this as it is fairly big and heavy – you will probably get an RSI. However if you have large paws then it does seem to be a pretty good fit and weight (personal opinion).

  9. Cederic says:

    That mouse mat is officially terrible design. The block containing USB port will just get in the way of the mouse cable as it leaves the mouse.

    I use a wireless mouse because mouse cables are obnoxious idiotic things that get in the way even on a clean empty desk. I’m completely bewildered that someone would be an actual mousemat that exacerbates this issue.

  10. ogopogo says:

    I appreciate that this article does touch on the another perennial tech issue: cat cord chewing. In case you’re not in the know on this issue, “bitter apple” liquid/spray is your bottled friend! You spritz it on your important cables and it leaves behind an awful residue, a residue that neither bacteria nor fungus seem interested in… and your cat(s) will *hate* it too. From the human perspective it smells a little like there’s a desiccated green apple stashed somewhere in the room, which is a price I can live with for cat-peace.

    • Cederic says:

      A firm ‘no’ does the trick with mine. They know that electrical wires are not toys.

    • Katharine Byrne says:

      Haha, yes, we’ve got some special spray to help dissuade them from chewing them too much, but it seems to wear off pretty quickly unfortunately! Clearly need to try a better one!

  11. ColonelFailure says:

    Clearly no members of The Chosen work on your editorial team RPS.

    If you had someone blessed to be left handed, you’d have realised that this piece of hardware is completely useless.