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Co-designed by one of the world's most accomplished gaming teams, Fnatic.


A powerful 32 bit ARM processor allows Sensei to reach up to 11,400 DCPI.


The most customizable mouse in the world. Whatever you want, however you want it.


Light up your wheel, CPI indicator or SteelSeries logo. Or turn it all off.


Get your own lift distance regardless of surface. Always. You have the authority now.


Via the built-in menu, you can customize on the go - at the touch of your scroll wheel.


A mouse as powerful as a Pentium computer? Yes. Really.


PC gamers will benefit fully from the SteelSeries Engine software.


"Steelseries has truly outdone itself this time with the Sensei, the newest in professional gaming mice. But this is no ordinary mouse, this is truly a masterpiece befitting of its title. "

"An amazing array of features masked by a sleek, sexy, professional finish, the Sensei is a powerhouse in the hands of either a pro or a noob."

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Benchmark Reviews

"Functionality is off the charts with the Sensei. The included SteelSeries Engine software allows users to easily customize every function of the Sensei."

"The Sensei is a beautiful peripheral and it works well for almost any purpose you can possibly think of."

Score: 9.2/10

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"There have been a raft of mice that enable the user to customise the buttons, or the colours. Record complex macros. Store multiple profiles. However we can't think of any that have done it so brilliantly as the Sensei."

"It looks the business, works flawlessly and has customisation options coming out of its ears.

This is currently our favourite mouse on the planet and it will take something very special to knock it from the top spot. "

Score: 9/10

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Score: 9/10

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Hardware Heaven

"With such a massive level of configuration for CPI (available in increments of one) the inclusion of a button to switch between two pre-set levels is very much appreciated and one of many aspects which demonstrate how well thought out the mouse is overall. No doubt a reflection on SteelSeries getting the input of over 25 top eSports players during its development."

"The SteelSeries Sensei is the most powerful mouse we have tested to date. An epic product from SteelSeries."

Score: 10/10

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Colony of Gamers

"The build quality of this mouse is frankly, some of the best I have ever seen. It feels solid and well put together. Every button has a satisfying click and I never really had a problem accidentally hitting buttons I didn't want to. The pads on the bottom of the mouse felt like it was almost gliding. "

"This is simply one of the best mice I have ever used, if you want a mouse that can be customized with almost any parameter you like and is built to last, get the Sensei."

Score: 5/5

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"The simple design is perfected by the customizable illuminations, resulting in a very futuristic and sexy looking mouse."

"It looks great, is packed full of features, and is a worthy addition to any PC gamers set-up. This wonderful mouse will cost you $89.99, and is worth every penny."

Score: 5/5

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Atomic MPC

"A wonderful effort from SteelSeries, and perfect for your next mouse upgrade."

Score: 9.6/10

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"The ARM alone is a major improvement but the improved scroll wheel and software also are nice. They kept everything that was great about the Xai and improved on the rest."

Score: 10/10

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"The software package alone is worth its weight in gold and for people who demand a wide variety of tuning then this should surely be right at the top of your shortlist. "

"This is quite possibly the finest mouse currently available today."

Score: 9/10

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"A mouse is just a tool and while a bad work man, or indeed gamer for that matter, will always blame his tools, it would be a very foolish person to cast any such blame on the SteelSeries Sensei as it is without a shadow of a doubt, by far the best gaming mouse I have had the pleasure to use."

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"A "tool" is a good way to sum up a mouse, because that's basically what it is. If you feel more comfortable with your mouse, then gaming is going to be more enjoyable, and if you don't need to fuss over a problem the mouse is causing you, that's a good thing."

"I've put about 80 hours of game time into the Sensei thus far and still love it like the first day I received it. That says a lot, as I usually get bored of any peripheral after a couple of weeks."

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"If you have the money and you want to get a mouse that will satisfy your every need, from work to play, then I cannot recommend the Sensei highly enough."

Score: 10/10

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"The Sensei clearly has the right stuff to be the master of your gaming dojo: powerful configuration options, a design good for both left and right-handers, and a nearly perfect balance of ergonomics and features to suit nearly any genre of game. "

Score: 4/5

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"Overall, the SteelSeries Sensei gaming mouse is an exceptional peripheral sure to revolutionize gaming mice in the future. Its on-board features are incredible and the mouse will please those looking for glitzy LEDs as well as gaming performance. "

Score: 4.5/5

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PC World

"Once you've set up your mouse just the way you want it, you can actually load the profile onto the mouse itself, so if you want to bring your mouse to a gaming event, it'll keep your exact settings without having to install any special driver software."

"If you're willing to spend some time getting the Sensei to work just the way you want it to, it will definitely reward your patience with excellent performance."

Score: 4/5

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Craving Tech

"There is an inner beauty in this mouse, as it is equipped with its own processor, fully customisable to suit your gaming style, and simply excel in tracking, accuracy, and control."

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Game Rant

"The Sensei would be a great buy for a StarCraft 2 player who wants to step up their game with custom macros or any first person shooter player looking for a mouse capable of fine tuning. "

"Its ultralight design and on-board profiles make it perfect as a travel gaming mouse for LAN parties or tournaments and the colored LEDs and custom LCD will make your mouse stand out in the crowd."

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Gaming Nexus

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The world's most customizable mouse.


Since the release of our first mouse, we have been using Japanese-inspiration in our naming of them. Our mice are built for performance and tournament-style play; Ikari means anger, Xai means talent, and the list of product names goes on. The Sensei is our version of the grand-master in our Do Jo. It is the teacher. The one everyone bows to, the one who knows tricks and secret moves that everyone wants to learn – but so very few can ever hope to master. It’s a fitting name. Master your game. Meet the Sensei.



1. Left side button 1
2. Left side button 2
3. Left click
4. Right click
5. Scroll wheel & middle click
6. Right side button 1
7. Right side button 2
8. CPI high / low switch
Fnatic Sensei Buttons

Weight & Size


  • Weight: 102 grams (0.22 lbs)
  • Height: 38,7 mm (1.5 in)
  • Width: 68,3 mm (2.7 in)
  • Length: 125,5 mm (4.9 in)

Fnatic Sensei Measure


SteelSeries Sensei can be fast, like really light-speed fast, if you need that kind of speed. Because we use a 32 bit ARM processor in the mouse, we can double (x2) your mouse sensitivity.

Our default CPI range: 1 to 5,700 CPI.
Our Double CPI range: 5701 to 11,400 CPI.

This feature is particularly useful for people using multiple monitor and similar environments.



Featuring a state of the art laser sensor that offers a consistent and reliable performance, the SteelSeries Sensei boasts 10.8 megapixel HD image correlation at up to 12,000 frames per second and the ability to handle tracking movements of up to 150 inches per second.

Fnatic Icon


Ever since the birth of what we know as playing computer games professionally, there has been Fnatic. Having lodged the quickest Painkiller, Unreal Tournament and Quake Live players, the most clever WarCraft III, StarCraft II and World of Warcraft players, the most avid Dota, League of Legends and Heroes of Newerth players, and last but not least the most experienced Call of Duty and Counter Strike teams, Fnatic is known for scooping up talent before you even knew it existed. Fnatic houses players from across the globe, have won multiple world championships across game genres and are one of the most accomplished gaming teams in the world.

Intense use


The processor in SteelSeries Sensei is a 32 bit ARM processor and it is as fast as the original Pentium 75 MHz processor released by Intel in 1994. That is fast, incredibly fast. This reference may sound like overkill, but it’s this type of power that allows us to do sophisticated calculations directly on the mouse – without the need for software drivers and without having to rely on the user’s computer.

Our industry leading ExactTech settings, like ExactSens, ExactRate, ExactAim and more, are calculated directly on the mouse providing the user with a mouse movement that is completely free of any interpolation or extrapolation, without any delay, filtering and without using up memory or resources on the user’s computer.



Material: Gaming grade High Performance PTFE material covers 16 % of mouse bottom to ensure maximum glide. We recommend changing glides regularly as they will eventually be worn down.
SteelSeries Sensei Glides



Thanks to the support of the SteelSeries Engine software, you can record even extremely long and advanced macros to the Sensei. The macros can be layered and can include keystrokes and precise timing. How you will decide to use this advanced feature is up to you (choose your configurations wisely and adhere to any rules that you may need to abide by during gameplay); we are only presenting you with the capabilities for endless possibilities.

Path correction


SteelSeries FreeMove eliminates path correction, which makes the mouse predict, correct and make your movement straight. With the SteelSeries Sensei, you can adjust the amount of path correction or completely disable it for 100% control of your movement.
Path correction off
Path correction eliminated.

Path correction on

Path correction set to max.

Developed with gamers


The name fits because everything we ever learned about mice, everything we ever researched, everything we ever discovered, everything that makes a mouse great, is exactly what we built the SteelSeries Sensei around. The DNA of Sensei is programmed to win. It is one of those rare hardware products forged by love and science, trial and error, passion from professional gamers and a desire to push the envelope. SteelSeries Sensei was born for tournament victory; it was built to help you win.



With the LCD display on the backside of the SteelSeries Sensei, you can customize all settings to fit your specific needs. The LCD menu offers setup of even the most advanced ExactTech settings described on this page.


It also allows you to upload your own bitmap picture, offering a great way to personalize your mouse – and help prevent theft at LAN-events, gaming cafes and other public places. Design your own unique picture for the Sensei LCD display, download to your computer and upload to your Sensei via the SteelSeries Engine software.
Customize LCD Screen



Complete customization of the Sensei’s can be configured through 4 technology features that we’re calling SteelSeries ExactTech settings.

Lift distance


The Sensei gives you the ability to customize the lift distance. This has a number of practical applications, most importantly it allows you to fine-tune the mouse to your preferred mousepad or mousing surface. Not all surfaces are equal. Surfaces are made of many different types of materials and those different materials have different qualities. They can be reflective, rough, smooth… the list goes on. All of these factors will influence the lift distance of a normal mouse; with the Sensei, we put a whole new dimension of control in your hands.



SteelSeries ExactAim will allow you to be more precise. Headshots anyone? As you slow down your cursor the mouse will decelerate even more allowing you to focus on your target.



SteelSeries ExactAccel does just the opposite as ExactAim. As you increase the speed of your mouse movement, ExactAccel will accelerate your movements even faster in order for you to move across your game or page faster.



SteelSeries ExactSens allows you to control how fast your pointer should move by adjusting your CPI in increments of 1 between 1 to 5,700 CPI. This means, the SteelSeries Sensei offers you true hardware based sensitivity settings, freeing you of interpolation from game software. To really get the full benefit from ExactSens you need to deactivate any cursor acceleration and set your sensitivity settings in-game (sensitivity 1 or adjust your sensitivity slider to lowest possible setting) and on your operating system to default. You can use the CPI calculator below to find the value that resembles the cursor speed you are used to, giving you a good starting point for tweaking your sensitivity to perfection.


3 different zones on the Sensei Fnatic Edition (the wheel, the CPI indicator and the back) can be programmed individually – in 16.8 million different colors. It’s another way for you to personalize your mouse. It also brings a very real benefit to users who utilize multiple profiles: by giving them different colors, you can quickly switch between profiles and also ways know which profile is active. For those of you who don’t like glowing shiny stuff on your desktop, you can completely switch off all illumination.
Fnatic Sensei 3 zones

Plug and play


There’s no need to install software of any kind in order to use the Sensei. The built-in driver can be adjusted through an LCD menu on the backside of the mouse. Simply plug in the Sensei and play. For the PC Gamers* who want really advanced customization options, the Sensei is supported by SteelSeries Engine technology.

*SteelSeries Engine for Mac coming 2012.



Operating systems:

  • Windows 2000
  • Windows XP
  • Windows Vista
  • Windows 7
  • Mac OS X
  • PC & Mac Compatible


    Will the Sensei make you a badass 1337 n00b-owning gaming hero? Probably not, sorry. A mouse is a tool, like any other tool. Even the very best, most expensive, most amazing tennis racket in the world will not make you a better user of the tennis racket. Nothing, except your own talent and dedication will do that for you. Any company or product promising that is full of it. Period.

    But will the Sensei help you win? Yes, for sure. And that is our promise to you. That is why we built the Sensei. With second-to-none accuracy during movements, it will give you precision down to the level of a single pixel. A 32 bit ARM processor powers the most sophisticated gaming mouse ever built, enabling advanced on-mouse calculations allowing unprecedented personalized setup and extra functionality for all 7 buttons. The comfortable shape with the slick non-slip metal coating and the ergonomic button placements will help reduce wrist strain, allowing you to be faster, more accurate and play longer.

    Make it your own
    LCD display:
    Did you know?

    Did you know


    RTS, MMO, FPS, RPG. Console, PC. Fnatic have held, and are currently housing professional gamers in most popular game genres, across platforms.

    Did you know


    If you’re into Fnatic, SteelSeries and the official orange colorway, we recommend that you check out the SteelSeries 7H Fnatic Edition headset.

    Did you know


    The players and teams of the Fnatic organization have won multiple world championships, and cashed in over $1,000,000 in prize money since 2006.

    Did you know


    Player interviews, other co-designed Fnatic gaming peripherals, videos and more. Check out our Fnatic team page for everything you need to know about the team.


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