i recently bought this hub controller i plugged the sata to give it power and i plugged my artic 360 III water cooler 3 pin conector so i can have argb but i dont have light did i do something wrong( my motherboard does not support argb so i bought this so i can have lights)
Sorry to break it to you but this is an argb HUB and not controller ....Its just a splitter that needs some input signal like from your mobo that replicates the same signal to more ports.
The thing you are looking for is something like this - https://techenclave.com/threads/iris-argb-controller-product-launch.222613/
Probably you've got an ARGB hub, which requires input signals for ARGB controlling from another controller.
I can feel you as my b450 boards didn't have argb headers. For that I bought a Coolermaster A1 ARGB controller. One side plugs to sata power from psu, and argb devices on another side. It has a micro usb connection that goes to mobo front panel USB header, and I can controller the lighting from the coolermaster's master plus application.
This one : https://mdcomputers.in/cooler-maste...8zZjnDrnSZQBZh-VstukCipZ7S2ASAo8aAuyzEALw_wcB
Recently I've switched to b550, so got that controller up for sale. Let me know if you're interested.