RM Series 850W 80+ Gold Power Supply from Corsair RAISE YOUR POWER CORSAIR RM Series Fully Modular Ultra-Low Noise Power Supplies deliver consistent 80 PLUS Gold efficient power to your PC. With triple/dual EPS12V cables and four PCIe 8-pin power connectors, RM PSUs have all the connections needed to power today’s most demanding PC upgrades. Industrial-grade, 105°C-rated capacitors deliver superb electrical performance and reliability, backed by a ten-year warranty. Wake your computer faster and consume less power with support for the Modern Standby sleep mode. Zero RPM fan mode ensures virtually silent operation at low and medium loads. Fully modular cables make PC builds and upgrades easy, as you connect only the cables your system requires. RM PSUs are quiet, efficient, and dependable to power your high-performance PC for years to come. 850Watts 80 Plus GoldEfficiency Rating ATXForm Factor Tuned for Low Noise Operation PLAY WITH NO DISTRACTIONS A 140mm rifle bearing fan with a specially calculated fan curve ensures that fan noise is kept to a minimum, even at full load. Made with Power Consumption in Mind HIGH EFFICIENCY With upwards of 90% peak efficiency, RM produces less noise and less heat, which means less time worrying and more time gaming. Installation is a Breeze FULLY MODULAR Completely modular cables means you only connect the cables your system needs, and the wide range of included cables adds broad compatibility with modern graphics cards and motherboards. Enjoy the Peace & Quiet ZERO RPM FAN MODE At low and medium loads the cooling fan switches off entirely for near-silent operation. Once the action picks up, the fan activates, ensuring critical component temps stay in check. Super Fast Loading Times TECHNOLOGY AND RELIABILITY For consistent, reliable power and superb electrical performance, each RM Series power supply features a robust resonant LLC topology with DC-DC conversion and 105°C rated industrial-grade capacitors. With precise timings, RMx supports Microsoft Modern Standby, ensuring extremely fast wake-from-sleep times and better low-load efficiency. Efficiency at it\'s Finest 115V 230V CERTIFICATIONS The Cybenetics organization measures efficiency and noise levels across the PSU’s entire operational range, using more than 1,450 different load combinations. The \"Gold\" efficiency rating is defined as ≥87% to The \"A-\" noise level test is measured in those same configurations to be ≥25 dBA & Specifications Size ATX Edition RM850 Wattage 850 W 80 PLUS Certification 80 PLUS Gold Max. Efficiency (at 230Vac) 92 % Cooling Fan Fans 1 x 140mm Internal +12V Rails Single Rail Rail 1 +12V 70.8 A Rail 2 +12V N/A Rail 3 +12V N/A Rail 4 +12V N/A Rail 5 +12V N/A Rail 6 +12V N/A Max. Combined Output +12V 70.8 A Modular Yes Modularity Full Modular SLI/CrossFire Yes EPS 12V Yes Motherboard Connector 24-pin Connectors 3 x 4+4-pin CPU +12V (EPS) 4 x 4-pin Molex 4 x 6+2-pin PCIe 14 x SATA Dimensions 150 x 86 x 160 (WxHxD) Package Type Retail Additional Information Model Number CP-9020235-UK GTIN 840006631187