Software

You can download the driver software from the official Fnatic OP website. This is an all-in-one software for most newer Fnatic products, and it's still in an early access phase, which is pretty funny considering it has been out for quite a long time.

In the top-left area, you can access the three pre-defined profiles. There is no option to delete existing ones or add more unfortunately—at least not yet. Next to the profile selection, we can switch between three main tabs. On the Performance page, we can access the CPI setting (depending on the profile, the default values are 400, 800, and 1000). Right below it are the options to turn on angle snapping and crank up the lift-off distance. The polling rate can be set up in this tab as well, and it affects all profiles, which is kind of strange. This means you can't have 500 Hz on one profile and 1000 Hz on another. Below the polling-rate options are the OS mouse settings. The Key Bindings tab has all the button-mapping options; you can rebind each and every button. The macro editor is not functional as the software says that it has not been implemented yet.

The Fnatic OP software takes up 181 MB of disk space and consumes about 87 MB of memory while running in the background, so it's safe to call it a heavyweight. If you don't want to have it on your computer, you can simply uninstall the software because the mouse saves the settings to its 8 MB of on-board memory.

Lighting

Naturally, the Clutch 2 has some RGB lighting as well. Both the scroll wheel and Fnatic logo on the left side light up according to your settings. There are three main lighting options, all of which can be bound to different profiles. There is static lighting—where you can crank down every color to turn off the lighting—and breathing and color cycle effects. You can add random colors or specific orders to the colors. The colors look very nice and vivid, and the transitions are smooth.

I also made a video in order to demonstrate these lighting effects (please note that it looks way better in reality as my camera cannot catch RGB lighting well):