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While not RGB LEDs (each LED is a single color - there is no way to change the colors from their rainbow configuration), there are different settings for the backlight. There are 3 brightness levels, and 6 different modes (breathing, two reactive modes, and a couple others.
Pro Comfortable to type on
The keys are concave on top, helping guide your fingers to the center of the keys which prevents your hand position from changing. There are grips on the bottom to ensure that they keyboard doesn't slip when you're typing.
Con Only blue switches
This keyboard is only available with Cherry MX Blue switches (tactile bump with click at actuation).