Software

The Corsair iCUE software is rather heavyweight, but very well designed overall. It's sleek, doesn't have any bugs, and is fast. Some of its options could be organized better, but it's still rather intuitive, and if you happen to be stuck, Corsair has some great tutorials that can definitely help you out.

After selecting your device, the main screen opens up its profile settings. You can link profiles to specific applications, trigger them with actions, and even give them your own icons if that's your thing. Clicking on the Settings button at the top of the window takes you to the main device settings, as well as firmware updating. You can also change the polling rate here. Main program preferences are at the bottom of this window. Moving on to the Actions tab, it has all the button-mapping options, accessible after pressing the plus icon on the upper bar. Naturally, you can create and execute macros, change all the button settings, and choose from a ton of key press actions here. The DPI tab contains the resolution options, and you can set up to 5+1 CPI levels or disable any you don't need. You can also set the indication color for the CPI levels, although not individually, unfortunately. The Performance page only contains angle snapping and Windows-related options, as well as the option to pick the colors for profile indication. Lastly, you can set the lift-off distance in the Surface Calibration tab, which is a very useful feature on this mouse because the default lift-off value is so high.

The iCUE software roughly takes up 552 MB of disk space and consumes 130 MB of memory in my configuration. It's rather heavyweight (not as bad as some I've seen before), so you can delete the software after setting everything up as the mouse has built-in memory for its settings.

Lighting

I can only repeat what I wrote in previous Corsair mice reviews. There are a ton of different effects available, and a lot of customization options. Three lighting zones can light up simultaneously, but you can control them individually or turn them off one by one. The colors are nice and vivid, the transitions are buttery smooth, and the lighting is more than bright enough.

Here's a demonstration video of some of the lighting effects: