Closed-loop liquid coolers (CLCs) have a number of advantages for enthusiasts. They can overclock higher than an air cooler but they don't require the expense, fiddling, or maintenance of a full-on custom loop. However, there hasn't been a lot of variety in the basic design lately. So today, we're taking a look at two CLCs that have broken from the herd. Cooler Master is working with Swiftech, which usually makes parts for custom loops, and Antec is putting its pump on the fans itself.