We’ve seen customizable systems for mice, keyboards, and other gadgets before, but usually from the likes of WASDKeyboards and ColorWare. Microsoft was the first big supplier to take up the mantle with its Xbox controllers and now Corsair is following along with the Corsair Custom Lab. The company’s first offerings are keyboards, mice, and desk mats. They’re pretty good picks, too. The first and only keyboard on offer so far is the K65 Plus Wireless, which is PCWorld’s selection for the best gaming keyboard on the market at the moment. The singular mouse available in the shop is the M75 Wirele…