The Cooler comes with it's own fans so what the case comes with has no bearing on the matter. Those fans are 2800 rpm .... Corsair's is 2700 and it sounds like Vacuum cleaner
However, the X62 costs $160 and it comes with all the problems associated w/ CLCs ... can't expand of maintain loop, weak pump, extreme rpm fans and noise associated therewith, cheap aluminum radiator (poor heat transfer).
For less money, you can get a complete custom water cooling kit using custom loop quality components ... all pre-assembled for you with none of those weaknesses. Before pulling the trigger, I'd suggest taking a look before deciding.
Hi SP fans was a thing back when radiators were 30 fpi (fins per inch) .... but with today's modern rads, it's just not needed, unless of course, you need extreme speed fans to compensate for the low heat transfer capability of aluminum rads. As for case fans, you actually want to go the other way. The best case fans on the market are Phanteks, but I don't think I'd swap out the NZXT fans.
The H440 is an excellent designed (aesthetically) case. If you have fan concerns, you might wanna take a look at some of the Phanteks fans and see if they appeal to you
Her Dimitri went fr
om an H440 to an Enthoo Luxe .. he explains the reasoning and difference between the cases in the video
https://www.youtube.com/watch?v=GdWXLAmmSjc
If you want more of a minimalist look, the Evolve won case of the year and also has no 5.25 bays.
https://www.youtube.com/watch?v=fQfRDSGlNqI
But if aesthetics is an issue, some gave called the Tempered Glass version worthy of inclusion in an Art Gallery ... same case w/ a significant facelift.
https://www.youtube.com/watch?v=GKUkj23GgFE
I'd have a hard time making a case against any of the 4 cases mentioned (including the h440) but one thing that stands out is that ya get a set of much better fans on the Phanteks models. They have the best performance / noise ration on the market. My son's build had 11 in the Luxe (2 on air cooler), and the only thing you can hear from that rig is the PSU fan (EVGA G2 1000). He wound up swapping it out for the Swiftech Cooler. The Phanteks also comes with a built in Fan controller which allows you to provide PWM control of the 3 pin fans giving you all the advanatges of PWM w/ any of the disadvantages/
http://www.swiftech.com/h240x2.aspx
As you can see here.... it beats the Similarly configured H100i hands downthermally and the h100i with 2700 rpm fans is 6 times as loud ... the kraken's is even faster rpm so should be even louder.