It seems to use the 120mm air slimmer fans These fan pushes a lot of air at lower rpm. Beyond 50% duty cycle, it can get loud very quick.

i like the silverstone aios this has SFF written all over it and even a lot of M-ATX builds in older cases. but this is 8 core 16 threads max (ok, ok the i-5 13600 also) for effective cooling on a PBO config cpu. it would be nice to see a thin 280mm also