FSP are using a Protechnic Electric fan, branded ‘MGA12012HF-A25', this is rated 12V 0.45A. This is specified to 2,400 rpm running on a fluid dynamic bearing.
Due to the 80 Plus Gold Efficiency rating, the power supply contains small, black heatsinks spaced across the PCB, some of which have sensors to control the PWM fan. FSP are using 105c rated capacitors in the Aurum CM Series Gold 650W unit which is always good to see. They are using a 105c rated 330uF/420V primary capacitor and KZE branded Japanese capacitors from United Chemi Con. Much of the design of this power supply has been handled in house.
The cables are fully sleeved into the chassis, to lower the risk of long term fraying.