Lol yeah, I got those fans too.
I guess I got a little crazy when AP15s weren't in stock. So, without thinking I just bought the 5400 RPM ones. Holy cow lol. BUT! They are VERY NICE fans to use from 'time-to-time.' Since my rads are set to intake cool air into my case, I'll bump the 5400rpm fans up to a higher speed to suck the hot air out (works well, imo). I only do this for a few minutes, generally, then set them back to near silent operation.
I have my high speed Gentle Typhoons hooked up to a fan controller. Mine have a 3 pin connection and no molex. I'm not sure what yours are set up like. My best guess is that the easiest thing would be to connect the molex wires to a terminal then connect that to a fan controller.
Good luck. And those fans are nice, just don't run them at even 1/2 speed all the time lol.
I just email their support centre and they replied
Thank you very much for your inquiry and the interest in Scythe items.
If you looking to the rated current and starting current value you will see, that a controlling is not possible. Most of fan controllers supports arround 0.5-1.5 A
0.22 A / 0.56 A / 1.14 A
0.97 A / 1.35 A / 2.69 A
I was going to buy the 4-pin molex to 3 pin adaptor but after that reply from them I kinda don't see the point :-/