Question New build, cannot get case RGB lights to work ?

Dec 26, 2023
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Hi all. I’m a huge novice when it comes to computer gaming builds but we thought we’d take the plunge for my son.

We’ve got a:
Kolink RGB mid tower
MSI Radeon 6500 xt
Ryzen 5 4500
Asrock B550m

At present I’ve been following videos on YouTube to get the thing built and all appears to be working - fans rotating but RGB lights aren’t coming on on the case.

I’ve checked all the wires and there’s one which doesn’t seem to have a home. It comes out of the Kolink RGB and has 3 pins (2,0,1) and says motherboard.

However there doesn’t seem to be an actual motherboard connector for it??

I’m sure this is the missing link overall so any help greatly appreciated.