Hi, I just bought a Montech XR case and want to put a Asus Rog Strix B650-A motherboard for it. The case has all the fans connected together with a single fan plug and an ARGB connector (at least that's what I think it is) that need to be plugged in.

The fan plug I know can just go straight into the mobo in one of the fan headers but the other one is confusing me. I've looked at pictures of an ARGB connector and it does look exactly like that so I guess it is an ARGB connector.

Where do I plug it?