3 pin to 4 pin RGB adaptor?

I have an RGB strip that I got from my university's lab (we're allowed to use them for whatever projects we want) and I wanted to use it for an RGB backplate that I'm working on. However, the connector on the strip seems to be 3 pin whilst my motherboard only has a 4 pin header.

I found a Phanteks RGB controller online that seems to use the same 3 pin connector setup, but now I'm not sure if that will connect to my PC either or if it has a different output.

So, is there any way I can connect this 3 pin led strip to my motherboard/pc, or would it be better to just buy a new 4 pin rgb strip? And if it's the latter, any recommendations on specific RGB strips, etc would be much appreciated as I don't have much experience with them and don't want to mess around making sure everything will work together.