Corsair SF850 850W SFX Power Supply - Platinum Efficiency for High-Performance SFF Systems

The Corsair SF850 delivers 850W of 80 PLUS Platinum-certified power in a compact SFX form-factor, designed specifically for high-performance small-form-factor PCs. This fully modular power supply combines efficiency, reliability, and quiet operation with ATX 3.1 compliance and PCIe 5.1 readiness for next-generation graphics cards.

ATX 3.1 Compliant with PCIe 5.1 Support

Built to meet Intel's ATX 3.1 power standard, the SF850 handles the demanding requirements of PCIe Gen 5 platforms while resisting transient power spikes. The included 12VHPWR (12+4) pin connector ensures compatibility with the latest high-performance graphics cards, delivering stable power for intensive gaming and computing workloads.

Fully Modular Design with Type-5 Micro-Fit Connectors

The SF850 features a fully modular cable system with Type-5 Micro-Fit PSU connectors, allowing you to connect only the cables you need. This reduces cable clutter in compact cases and improves airflow. The comprehensive connector array includes 1x ATX 24-pin, 2x EPS/ATX 12V 8-pin (4+4), 3x PCIe 8-pin (6+2), 1x 12VHPWR connector, 8x SATA (4 straight, 4 right-angle), and 3x PATA connectors.

Silent 92mm Fluid Dynamic Bearing Fan

Cooling is managed by a 92mm PWM fan with fluid dynamic bearing technology, providing efficient heat dissipation with minimal noise. Zero RPM Mode keeps the fan completely off at low and medium loads, ensuring near-silent operation during everyday tasks. The fan only spins up when needed, maintaining optimal temperatures without unnecessary noise.

Premium Japanese Capacitors for Maximum Reliability

All capacitors in the SF850 are 105°C rated Japanese components, ensuring unwavering power delivery and long-term reliability even under sustained high-stress conditions. The unit maintains a 50°C continuous operating temperature rating, making it suitable for demanding environments and extended gaming sessions.

Compact SFX Form-Factor with ATX Compatibility

Measuring just 125 x 100 x 63.5mm and weighing 1.05kg, the SF850 fits seamlessly into SFF cases while providing the power output typically associated with larger ATX units. An SFX-to-ATX adapter bracket is included, allowing installation in standard ATX cases for users who want the space-saving benefits of an SFX PSU in a larger system.

Cybenetics Platinum Certified Efficiency

With both 80 PLUS Platinum and Cybenetics Platinum certifications, the SF850 operates at peak efficiency across a wide range of loads, reducing heat generation and energy costs. The universal AC input (100-240V) ensures global compatibility.

Backed by a comprehensive 7-year warranty, the Corsair SF850 provides the power density, efficiency, and reliability required for premium small-form-factor builds and high-performance computing systems.

CORSAIR SF Series SF850 80 PLUS Platinum Cybenetics Platinum SFX Power Supply

Description

Specification

• Form Factor: SFX
• Series: Corsair SF
• Wattage: 850 W
• Modular: Fully Modular
• Compatibility: ATX12V v3
  EPS12V v2.92
  ATX 3.1 Compliant
  PCIe 5.1 Ready
• #Hide#Wattage Range: 800 - 860W
• Connectors: 1 x ATX (24-pin)
  2 x EPS / ATX 12V 8-pin (4+4)
  3 x PCIe 8-pin (6+2)
  1 x 12VHPWR (12+4) pin
  4 x SATA (4 Straight SATA)
  4 x SATA (4 Right SATA)
  3 x PATA
• AC Input: 100-240V
• Fan Type: 92mm PWM Cooling Fan
• Fan Bearing: Fluid / Hydraulic Bearing
• Noise: Low-Noise Operation
  Zero RPM Mode
• Max Certification: Platinum
• Efficiency: 80+ Platinum
  Cybenetics Platinum
• Additional Features: See Overview
• Package Contents: SF850 Power Supply
  DC Cable Kit
  SFX-ATX Adapter Bracket
  Power Cord
  Mounting Screws
  Cable Ties
  
• Weight/Dimensions: 1.05 kg
  125 x 100 x 63.5 mm
• Package Weight: 2.3300 kg
• Warranty: 7 Years
• #Hide#ATX 3.1/3.0: ATX 3.1