Cosmos II - 2 Pins for a fan?

Recommended Posts

Yaron    0


I recently bought the Cosmos II and I notice cables 2 pins to turn off or turn on the LEDs of a fan.
I find nothing with 2 male pins to be connected to it.
anyone have a reference?
Thank you.

Share this post

Link to post
Share on other sites
CM Michiel    12

Hi Yaron,


These connectors are indeed for turning on/off the LED of a fan.

You have to use compatible fans what have the LED separately. These fans are available on our CM part shop:




Standard only the front fan in the Cosmos II has LED ;)

Share this post

Link to post
Share on other sites
edokie    0

My Cosmos II 25th Anniversary Edition has eight wires with two pin connectors, but these aren't mentioned in the manual that came with the case. My EVGA X299 DARK motherboard does not have any plugs for two pin connectors. What are they for and how do I activate them? Where do these 2 Pin connectors connect on the Cosmos Case? I assume they are for LEDs is that correct? Thank you.

Share this post

Link to post
Share on other sites
Abaidor    0

Oops I just noticed this thread after having replied to the other one.


Not all fans have separate 2-pin LED connectors and with the advent of RGB fans these are most probably obsolete unless you find something else that can be turned on-off through these (low power of course). 


I am doing some mods to the case such as ditching all the USB 2.0 ports and replacing them with USB 3.0 and 1X USB 3.0 Gen 2 (10Gb/s) Type-C plug as well as an HDMI pass-through. I will also get rid of the E-Sata port (obsolete) for the HDMI pass-through.  

I might as well get rid of the Fan-Controller and place an Aquero 6 in its place if Asus Fan Expert does not do a good job but I am still looking for a use for it since I don't want it for my PWM fans.   


It is an old case that I love but some things show their age so since Cooler Master does not update them it is mod time.  





Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now