The fans are case fans that came with my case. It is DC not PWM fans. They work. NZXT fans are not the quietest nor high performing. That is why replaced it.

I held on to them for backup. I bought some new fans and don't need them for backup either.

The controller is not for these fans. It is included as an extra since I don't use it. You need the controller for NZXT ARGB fans since the connectors are proprietary.

The price is for all of them.