that website obviously provides the application to download !!
if "Noctua NF-A9x14 2.5W" isn't sold separately, which is absolute insanity,
it does not mean that you cannot get it,
and in small cases like "dan a4" it's highly beneficial to have a proper fans.
they have multiple models and some of they is crap.
and you always will benefit from a higher air flow !
especially in the small space like dan a4 has.
like "Noctua NF-A9x14" is a crap and many other fans they have,
however, only in terms of performance they put in them,
the quality is superior for any model.
.
