Review on 💨 Fractal Design Dynamic X2 GP-12 Computer Fan; Silent, High Airflow 120x120x25mm - FDB-Bearings, Trip Wire, Aerodynamically Shaped Struts - 1200RPM, 12v, Black Edition by Gregory Castellanos

I disassembled the first one because of the high frequency hum. I attached a fan to the side of the case with rubber baffles. The previous fan of another brand was silent at this point. The second Fractal fan that replaced the first rma also has a high-pitched hum, although not as loud as the first that was returned. I guess I'm also sending back a replacement and I'm still looking for a new fan. I was hoping the brand name made up for the cheap price but I think you get what you pay for. :(