NZXT SENTRY LX (3 PIN)...Fans 4 pin?

[Sumer_]

Hi,
I've already bought these freaking parts so theres no returning them.
I have an NZXT Sentry LX w/ 5 3 pin connections. I have 3 radiator fans w/ 4 pin connections. Where the hell do I buy an adapter to connect these, or can I rip off the side of the 3 pin connector, in order to fit a 4?

 

[Sumer_]

solved. Just rip off the side and it works