so today i'll be doing a quick unboxing of a new fan from Noctua this is the nf
p14flx now what the flx uh suffix
denotes is that it is a flexible design so that means that the flx fan has three
different speed settings which are
1200 900 and 750 RPM and it achieves
this through a few different adapters that are included with it other key
features of this 140 millimeter fan are the impeller with vortex control notches
and we'll show you those in a minute the metal reinforcements which allow the
blah blah blah ultimate manufacturing precision high durability and vibration
free running as well as a round frame
now the round frame of this fan is what makes it so special and we'll get to
more about that in a minute this has their updated drive bearing um it has
the sso bearing with the smooth communication drive too ensure super
running and smoothing by eliminating torque variations and switching noises etc etc basically it's a fan but what
makes it special is what we are about to get to here in just a moment so let's
have a look at the accessories that are included with the nfp 14 flx
and first we have four rubber fan mounting grommets so rather
than using screws which can transfer vibration directly to the case Noctua
fans use these little rubber mounting grommets these are quite common
but they're only really included with higher end fans or you have to buy them
separately next we have two
low noise adapters so one is the low noise adapter and one is the ultra low
noise adapter so all you do is plug these in in line with the fan and they
will make it run at a slower RPM next we have four metal mounting screws
you can't always use those rubber grommets and sometimes good old-fashioned mounting screws are what
works best and then we have
ah adapters so these are 120 millimeter
to 140 millimeter adapter but wait Linus
you said this was a 140 millimeter fan
well it is because of the round frame
they're actually able to make this 140 millimeter fan compatible with 120
millimeter mounts you can see if you had a square frame going around these holes
you'd have substantially less room for the fan so Noctua's engineers
ingeniously decided to make it work this way so all you have to do is attach the
little metal bracket and you can see that that makes it a little bit wider a
little bit further out so you can just attach it to a 140 millimeter hole or to
a 120 millimeter hole very cool now the vortex control notches are what we'll
talk about next here and let's just have a quick look at the fan here so you can
see that they're offset we've got two notches here at the edge of the blade we
have two notches here at the middle of the blade and two notches here closer to
the center of the fan now what that means is that the way these disrupt the
airflow is supposed to be more even overall because they're offset this way
versus having all of the blades shaped exactly the same way Noctua has been
doing this on all of their fans for quite a while now and obviously they're
very very well regarded fans because people pay very good money for Noctua
fans now another thing they've got called out here is the metal reinforced
sso bearing shell and magnet so that's
uh kind of cool i suppose okay it comes with a sleeved three pin connector and
the last accessory is probably something i should have mentioned before and it is
a three pin to molex connector so you
can power this thing any way you want you can power it at any speed you want
and you can mount it any way you want thank you for checking out my unboxing
and product overview of the Noctua nfp14flx
okay that wasn't really the end i've re-boxed the fan already but what i noticed when i was re-boxing it is this
little tab right here in huge bold face type so that i couldn't possibly miss it
says open and we can actually open up
this uh this merchandising thing on the back of the fan so we can find out
exactly how the vortex control lodges work because my explanation was just
terrible okay so standard trailing edges can produce rotating pressure fields and
vertices that cause audible noise at distinct frequencies this un this
undesired tonal noise is much more annoying than noise that spread over a
broad frequency range so that is what the vortex control notches do they make
it split into several smaller vortices and the noise is spread over a wider
range of frequencies and is therefore much less perceptible so there you go
thank you for checking out my unboxing and my little add-on about the nf p14
flx