PWM for case fans?

[Flapduckquack]

Hey guys

I wanted to ask, when i purchased another case fan (sp120 for the hdd bay&dust filter) would it be better to get the PWM version of the fan, or would the normal one be fine?

 

[Flapduckquack]

Ah ok, thanks for the reply. I wasn't sure what would be best suited to a case fan, i might go for the PWM to make sure i can change the rpm/noise levels if i grabbed the performance one. Thanks for the reply!