TUNED FOR LOW-NOISE OPERATION RMx power supplies are tuned with a low-noise fan curve to ensure that even at full load fan noise is kept to a minimum. 80 PLUS GOLD CERTIFIED The RM650x can deliver power with over 90% efficiency to keep energy consumption noise temperatures & your power bill low. 100% ALL JAPANESE 105°C CAPACITORS By using high-end electrolytic capacitors the RM650x delivers the unwavering power & long-term reliability you’ve come to expect from a CORSAIR power supply..