Ultimate Guide to Mid-Tower, Full-Tower, and Compact Gaming Cases: Explore Tempered Glass, RGB Features, and Protection Options
Ultimate Guide to Mid-Tower, Full-Tower, and Compact Gaming Cases: Explore Tempered Glass, RGB Features, and Protection Options Ultimate Guide to Mid-Tower, Full-Tower, and Compact Gaming Cases: Explore Tempered Glass, RGB Features, and Protection Options
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CORSAIR SF Series SF850 80 PLUS Platinum Cybenetics Platinum SFX Power Supply

Give your high-performance SFF PC the power it needs with a CORSAIR SF Series 80 PLUS Platinum SFX Power Supply. ATX 3.1 compliant and PCIe 5.1 ready, the SF Platinum Series delivers high-wattage 80 PLUS Platinum-certified power in a compact form-factor with a fully modular design. A 92mm PWM cooling fan ensures quiet operation, with Zero RPM Mode support for no fan noise at all at low loads. Built exclusively with 105°C rated Japanese capacitors, the SF Platinum Series easily handles high-stress gaming and computing. Includes an SFX-to-ATX bracket for installation in larger cases and a seven-year warranty for total confidence.


  • 80 PLUS Platinum Rated SFX Power: Massive Platinum-rated power in a compact SFX form-factor, perfect for the most power-dense small-form-factor PCs or saving space in larger cases.
  • ATX 3.1 Compliant & PCIe 5.1 Ready: Compliant with the ATX 3.1 power standard from Intel®, supporting the PCIe Gen 5 platform and resisting transient power spikes.
  • Fully Modular, Type-5 Micro-Fit PSU Connectors: With flexible cabling, taking up less space for tidy cable management and compatibility in small cases.
  • 92mm PWM Cooling Fan: Delivers powerful cooling with low-noise operation thanks to a fluid dynamic bearing.
  • 105°C Rated Japanese Capacitors: For unwavering power and reliability.
  • Zero RPM Mode: The fan stays off until it’s needed, for near-silent operation at low and medium loads.
  • 50°C Continuous Operating Temperature: For reliable power even under high-stress conditions.
  • SFX-to-ATX Bracket Included: Enables installation into ATX cases for more cable space in larger systems.
  • Seven-Year Warranty: For complete peace of mind. 
Form FactorSFX
EditionCorsair SF Series (2024) SF850, 80 PLUS Platinum, Fully Modular Power Supply
Wattage850 W
80 PLUS Certification80 PLUS Platinum
Max. Efficiency (at 230Vac) 
CoolingFan
Fans1 x 92mm
Internal 12V RailsSingle Rail
Rail 1 12V70.8 A
Rail 2 12VN/A
Rail 3 12VN/A
Rail 4 12VN/A
Rail 5 12VN/A
Rail 6 12VN/A
Max. Combined Output 12VN/A
ModularYes
ModularityFull Modular
SLI/CrossFireNo
EPS 12VYes
Motherboard Connector24-pin
Connectors
  • 1 x 12 4-pin PCIe
  • 2 x 4 4-pin CPU 12V (EPS)
  • 3 x 6 2-pin PCIe
  • 3 x SATA
Dimensions125 x 63.5 x 100 (WxHxD)
Package TypeRetail
Warranty7 Year
850W Corsair SF850 2024 ATX 3.1 Platinum Modular SFX PSU
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$ 58.73

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