help with my weird fans

I bought a used pc case with rgb fans They're molex with 3 pins and three cables each pin is connected to a cable each molex has a male and female side all connected to each othes connected to the psu But the thing is they're all different colours and modes sometimes single colour red,pink,green,blue etc. Something only two are lighting a rainbow that moves and changes colours When i tried connecting each one alone nothing changed cd1225l12fa is their model number I have a feeling that the guy modded it or something and it was normal 3 pin but he lost the case fan hub cuz it comes with one Or he took it with the original case fans its thermaltake v200