My motherboard only has the 12V GRB header, but it doesn't have any 5V RGB headers. Are there any controllers I can get that control the RGB entirely through USB? I have a Gigabyte B450M DS3H.
The Addressable RGB LED Controlleris a compact size Addressable RGB LED controller that allows you to easily customize your ARGB devices without the need for either an ARGB capable motherboard or software. With different lighting modes, you can have full customization and your PC illumination...
Regarding the Cooler Master unit suggested above, oddly Amazon.com says it is unavailable, but Amazon.ca claims it has them. BUT user comments about the actual seller are not encouraging.