If you are rough on your keyboards but aren't willing to simply keep replacing cheap models then take a look at the Patriot Viper V765 RGB keyboard.  It has an IP56 rating which means it is protected well against Cheez-it dust getting in as well as being able to handle any spills short of full immersion.  The Kailh white box switches will feel similar to Cherry MX Blue, if you are familiar with them, and feature RGB backlighting as you probably guessed. 

Modders-Inc were impressed by both the physical keyboard as well as the software to control it; which you can see for yourself here.

"It seems I end up starting every peripheral review the same way. By saying that peripherals are the most subjective thing that we review and how what I may like, you may not. That’s statement is especially true when it comes to keyboards. Everyone has their preference when it comes to typing and or gaming."

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