CORSAIR RMx Series RM850x – 850 Watt 80 PLUS Gold Certified Fully Modular PSU CORSAIR RMx Series RM850x is a fully modular power supply comprising of the highest quality components as well as premium material to deliver 80 PLUS Gold efficient power to your PC, with virtually silent operation. ALL THE WATTS, NONE OF THE DECIBELS. CORSAIR RMx series fully modular power supplies comprising of the highest quality components to deliver 80 PLUS Gold efficient power to your PC as well as totally silent operation. 80 PLUS GOLD CERTIFIED High efficiency operation for lower power consumption in addition with less noise and cooler temperatures. TUNED FOR LOW NOISE OPERATION Consist of a specially set fan curve. Therefore, keeping the RMX series fan noise to an absolute bare minimum. ZERO RPM FAN MODE IN RMX SERIES At low and medium loads the cooling fan switches off entirely for near-silent operation. 100% ALL JAPANESE 105°C CAPACITORS Premium internal components of RMX series ensure unwavering power delivery and long-term reliability. FULLY MODULAR CABLES WITH CORSAIR RMX SERIES Only connect the cables your system needs, making clean and tidy builds easier. COMPACT SIZE A 160mm-long casing ensures the CORSAIR RMx Series RM850x is an easy fit in almost all modern enthusiast PC cases.