I made my own ARGB hub for my fans since my motherboard didnt have a pin for it.
So when I had bought my case I noticed that the fans were argb but I skimped out on my mobo so it didnt have a dedicated argb pin. So I decided to buy one argb hub online.
But there are no ARGB hubs that connect to your motherboard available in India every available one is the remote kind with just some limited presets.
So I decided to build my own
It is a simple rasberry pi pico build. The sketch is
Internal usb port on motherboard —-> pico —-> the case fans 5v3pin connector.
It just required some soldering and an internal usb to usb A adapter that you can find cheaply online.
And you can get the code written by claude then flash it to the pico.
So for anyone else that has ARGB supported fans or stuff but no ARGB pin on their mobo ( I know a really specific problem) they can try this out.
Here is the cost breakdown.
Raspberry pi pico - 400₹ amazon
Jumper cables - 100₹ for 40 smthing cables.
Pin headers again 150₹ for 60 smthing headers
Soldering kit ~ around 300₹ but you can get it soldered from a local shop
Internal USB to USB-A 250₹ amazon
Usb-A to type C for pico - 100-150₹
So the total cost comes to about 1k excluding the soldering. I find this better than the ones available online as it is much cheaper and supports open RGB ( you can make your fans ambient ie they respond to the colours on your screen) .
Comment for any doubts you have and I am sorry if this is not the right subreddit for this I dont know where else to post.