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, and your power bill low. 100% ALL JAPANESE 105°C CAPACITORS By using high-end electrolytic capacitors, the RM650x delivers the unwavering power and long-term reliability you''ve come to expect from a CORSAIR power supply. ZERO RPM FAN MODE At low and medium loads the RM650x''s cooling fan doesn''t spin until you need it, for near-silent operation. COMPACT SIZE The RM650x''s 160mm-long casing ensures an easy fit in almost all modern enthusiast PC cases FULLY MODULAR CABLES The RM650x''s fully modular power cables mean that you only connect the cables your system needs, making clean and tidy builds easier. TEN-YEAR WARRANTY CORSAIR offers a ten-year warranty on all RMx series power supplies, your guarantee of reliable operation that will last across several system builds. If you run into any problems during the installation or use of an RMx power supply, CORSAIR global customer support is ready to help.