Corsair ML 140 PRO LED fans (Not RGB)

[Ak98]

Hi to everyone, i'm about to buy 3 of these fans for the intake of my case but there is one thing that bothers me. I wanted to connect them all to one header on the MOBO.... so the question is, do i need a fan splitter with external power or the one that take power from the MOBO alone?

Yes, i am aware that in this case i cannot control them individually.

Thanks to everyone that answer!!

[c-attack]

ML140 LED is approximately 0.28A per fan or 0.84A for the three. I consider that to still be within the safe level for a standard 1.0A max motherboard fan header. Not too much under, but then the fans are not likely to be pulling max amperage very often. 3x140@2000 rpm is quite a bit of noise on the front rail and probably unnecessary. When at lower speeds they will pull less current. You may also have a H_AMP or high amperage header on your MB. those are typically 2-3A and would handle them easily.

[Ak98]

Thanks for the answer, after reading the manual i don't see a specific port rated for high amperage but it says that in PWM mode the fan connectors provide constant 12V output so it should be ok, regarding the noise i would set them all all through the fan hub to 1000rpm more or less so they should not make a lot of noise.

[c-attack]

You may not have a high amp fan header and not all boards do. Noise you can judge for yourself, but the fans will only draw 0.28A each when they are at maximum speed (2000 rpm). If you are not running at the maximum speed, you are not going to use the same 0.28A. You should be comfortably below any normal safety margin virtually all the time.