[M] Cooler Master Masterkeys Pro L RGB Mechanical Keyboard Review
 

By featuring an upgraded ARM Cortex M3 processor clocked at 72MHz, the Masterkeys Pro L keyboard can be used to save and execute commands and macros with impressive speed, but also drive the whole array of LED lights in order to create nice effects. The Cherry MX switches are widely-known for their reliability and the upgrade to the full-RGB version allows us to select from a total of 16.7 million colors.

http://www.madshrimps.be/articles/article/1000907/