I'm a mechanical keyboard nerd from way back. I learned to type on TRS-80s and IBM Model Fs. However, my very first Cherry MX-style mechanical keyboard was a Cooler Master QuickFire Rapid tenkeyless model equipped with red switches. That was a good while ago—in 2011 or thereabouts—and so it's well past time that I checked in with CM to see what's going on. As it happens, the company recently released the first keyboards in its new CK series. Let's have a look at the Cooler Master CK552 mechanical gaming keyboard.