Question 12V rgb Question for new build

i am getting an 870e ASUS crosshair or strix motherboard for my new 9800x3d they only have ARGB 5v headers. I want to use the 14 LED case fans that i have now on my two rads on my 5900x build(480mm and 360mm in push/pull) but they are old style 12v 4 pin RGB but the new mobo dont have both headers like my x570 crosshair has. I really dont want to buy 14 new fans just for lighting.... can someone suggest a solution, thanks
 
You're going to need something like this;
but you will need to download Coolermaster's RGB LED controller software found towards the end of this URL;
https://www.coolermaster.com/en-global/products/rgb-led-controller/?tab=tech_spec

You can use a 1-to-3 splitter akin to this;
https://store.coolermaster.eu/produ...jL4Ks_W6JuPNX4R-RZVpjwHbdbCfLic2o9g3SCA64LkqN
per header on the hub to give you 12 fans but you're going to end up with groups of lighting and you're being left out 2 fans out of the 14.