Inside the Hellion
To get this far you must remove all four of the PTFE feet from the mouse and remove the screws found under each of them. This allows for the top and aluminum sides to lift right off the base of the Hellion.
At the front you have the USB cable entering the mouse as it then dives to the right of the scroll wheel. On that PCB with the scroll wheel attached to it, you can see a line of four switches for the front half of the mouse's functionality.
Looking a bit closer, you can see that these four switches across the front backing the right click, left click, page forward, and page back buttons all get Omron switches to allow you to literally click away with no worries of longevity.
To make the race switch functional, there is a pair of ribbon cables that carries the selection to the 16-bit onboard processor so it can determine what to do as you click the buttons in each profile.
Buried deep, on the PCB under everything else, you can see the Avago ADSN 9500 laser sensor chip that takes care of tracking the mouse on almost any surface.
Backing the not-so on-the-fly DPI buttons are a pair of TTC micro switches to save a little room and allow for clearance. Since these are hard to use, and won't get messed with often, you don't need long life in values of clicks like the Omron's offer.
On the opposite side of the Hellion, removing the attack button shows the Cherry MX Blue switch used here, the world's first to ever implement a keyboard switch on a mouse.
As I always do, after tearing the mouse apart, I reassemble it and test things out to make sure I got everything right. Once powered, on the default settings, the Hellion illuminates with the glow of red LEDs. The Leetgion name stays whatever color you set to the profile, but the larger bar at the back is where you will see the indicative flash of LED denoting the DPI selection made.
Down both sides of the Hellion and under that name near the scroll wheel, you also get a red glow of LEDs. These will also change with the profiles individual settings, and with 16.8 million colors to choose from, you can make this match any environment.