Corsair 850W SF Series SF850 SFX Fully Modular 80+ Platinum Power Supply

CORSAIR SF Series SF850 – 850W SFX PSU – Fully Modular – 80 PLUS Platinum – ATX 3.1 – PCIe 5.1 – Cybenetics Platinum

High-Efficiency Power in a Compact Form

Power your compact, high-performance build with the CORSAIR SF Series SF850 SFX Power Supply, delivering 850W of 80 PLUS Platinum efficiency in a small-form-factor design. Fully compliant with ATX 3.1 and PCIe 5.1, this PSU is engineered to meet the latest standards for today’s and tomorrow’s powerful components.

Despite its compact size, the SF850 doesn’t compromise on performance or silence. It features 105°C-rated Japanese capacitors for reliability, a 92mm PWM fan for efficient cooling, and Zero RPM Mode for silent operation under low loads. It also includes an SFX-to-ATX bracket, allowing it to fit perfectly into larger cases.

Key Features

• 80 PLUS Platinum Certified
  Achieves exceptional efficiency up to 92%, reducing heat output and power consumption in a space-saving SFX form factor.

• ATX 3.1 & PCIe 5.1 Ready
  Supports modern GPU platforms with compliance for Intel’s ATX 3.1 standard and a 12V-2×6 connector for next-gen graphics cards.

• Fully Modular Type-5 Micro-Fit Cables
  Use only the cables you need for a cleaner build and improved airflow in small spaces.

• 92mm PWM Cooling Fan
  A fluid dynamic bearing fan provides reliable cooling performance with low noise, automatically adjusting based on load.

• Zero RPM Fan Mode
  The fan stays completely off during low and medium loads for near-silent operation.

• Industrial-Grade Capacitors
  Equipped with 100% Japanese 105°C electrolytic capacitors to ensure consistent and reliable power delivery.

• 50°C Operating Temperature
  Designed to perform in high-stress conditions, ensuring stability and long-term durability.

• SFX-to-ATX Bracket Included
  Install the SF850 in standard ATX cases for added flexibility and compatibility with larger systems.

• Seven-Year Warranty
  Backed by CORSAIR’s trusted support, giving you peace of mind for years of dependable use.

Compact Power, Maximum Reliability

The CORSAIR SF850 Platinum combines elite efficiency, whisper-quiet cooling, and robust power delivery in a space-saving design. Whether you’re building an SFF powerhouse or need a compact PSU for a clean build, the SF Series ensures your components run cool, quiet, and stable—today and for years to come.