Question about fan controllers

[davidyu]

Can a fan controller make the speeds of a fan higher than its given specs?

 

[Conumdrum]

LOL, no, you only have 12VDC to play with, and thats max for the fans. Get faster fans, do your research, never ever believe what the manufacturers say on their specs.

Good cheap HS fans?

Look at Petras, Yate Loon Highs.