Lacking the software or the 5 programmable G keys, the Cougar 600K is instead set up with specific functions that are adjustable with a quick key click. One key controls the LED lighting on the WASD and arrow keys through a sequence that repeats. Another set of keys in the upper left are for the repeat rate setting in four steps (1x / 2x / 4x / 8x) with each key LED lit for quick reference.

Located in the upper right are two additional sets of dedicated keys. The upper four keys are for multimedia control and the three keys below control the speaker volume. Also included is a Windows Lock key to deactivate/activate the Windows Logo key.

Built with an aluminum frame using Cherry MX switches featuring n-key and 6-key rollover, the Cougar 600K is available in four switch variants: blue, brown, black, and red. Let's getting this mechanical keyboard out of its large box and hooked up to test the experience.