The RGB models from the K and the Strafe series from Corsair all use the Corsair Utility Engine, or CUE. The same software package is also used by RGB mice, headsets and mouse pads which means that the lighting can be synchronized. The software is nicely designed and easy to use. Despite the extensive features, even the beginning user will be able to use it.
The configuration options for the keyboard are divided in three subcategories. You can change the function of each key under the subcategory Actions. You have quite a lot of options to choose from. First of all you can set macros. The software also allows you to remap keys, use them as media keys, start applications or switch between various profiles.
The category Lighting Effects is all about, as you'd guess, the lighting features of the keyboard. You can apply various layers, which can be moved relative to each other easily. Thirteen standard effects are included, with customization options for each effect, such as colour, speed and direction of the lighting effect.
The features don't stop here howevevr, as there is also a button that allows you to switch to Advanced mode. The customization options become even more extensive in this mode. The advanced user will be able to create their own lighting effects, which can be exported and shared via the Corsair RGB Profile Community on Corsair's website. This allows other users to download and import these effects in their own Corsair Utility Engine. You do need to register for an account to do this however. Corsair uses an open platform for its RGB lighting, the Software Development Kit can be downloaded from Corsair's forum.
Under the third header, Performance, it's possible to disable the Windows key and key combinations such as Alt+Tab, Alt+F4 and Shift+Tab. This feature is mainly aimed at gamers, to allow them to not accidentally activate something in the heat of the virtual battle.
All in all Corsair leaves behind an excellent impression with the current CUE version, the same cannot always be said for previous versions. The software has really matured and both the customization options and user-friendliness can be called excellent.