Closed-loop coolers are all the rage these days and everyone’s gotta have one. The manufacturers, that is. What used to be an Antec and Corsair game has now escalated with Thermaltake and most recently NZXT and CoolerMaster joining the fray. Its getting harder for manufacturers to stand-out in this market but for users with much more simpler needs, performance is what matters. Even so, there’s still a lot to choose from. Today we’ll be looking at CoolerMaster’s entry into the closed-loop, liquid cooling arena with the Seidon. Let’s see what this 120mm rad can do and as usual let’s make this showy!