CORSAIR SF850 Platinum SFX Power Supply

The CORSAIR SF850 Platinum is a high-performance SFX power supply designed for compact yet powerful PC builds. Delivering 850W of continuous power with 80 PLUS® Platinum efficiency, ATX 3.1 certification, and fully modular Type 5 Micro-Fit connectors, it provides reliable power delivery for modern gaming systems, creator workstations, and enthusiast small form factor PCs.

Compact SFX Form Factor

Engineered for small form factor systems, the SF850 packs high-performance power delivery into a compact design, making it ideal for Mini-ITX and space-saving PC builds.

850W Continuous Power Output

The power supply delivers up to 850W of continuous power, providing ample capacity for high-performance processors, modern graphics cards, and demanding computing workloads.

80 PLUS® Platinum Efficiency

Certified 80 PLUS® Platinum, the SF850 offers excellent power efficiency, helping reduce energy consumption, lower heat output, and maintain quieter system operation.

ATX 3.1 Certified

Built to meet the ATX 3.1 specification, the SF850 provides reliable power delivery and compatibility with the latest PC hardware and power requirements.

PCIe 5.1 Ready

The included PCIe 5.1 12V-2x6 GPU cable provides direct support for modern graphics cards, including NVIDIA® GeForce RTX™ 40 Series and next-generation GPUs.

50°C Continuous Operating Temperature

Designed to perform reliably under demanding conditions, the SF850 can continuously operate at temperatures up to 50°C while maintaining stable power output.

Premium Japanese Capacitors

The power supply utilizes 100% industrial-grade Japanese electrolytic capacitors rated for 105°C operation, ensuring exceptional durability, reliability, and long-term performance.

Quiet Cooling Performance

A fluid dynamic bearing cooling fan delivers efficient airflow while minimizing operating noise, helping maintain quiet system performance even under load.

Zero RPM Fan Mode

During low to moderate workloads, Zero RPM mode completely stops the cooling fan, eliminating fan noise and providing silent operation whenever possible.

Fully Modular Design

The fully modular cable system allows users to install only the necessary cables, reducing clutter and improving airflow for cleaner and more organized builds.

Type 5 Micro-Fit Connectors

Compact Type 5 Micro-Fit connectors and flexible cabling simplify cable routing and maximize usable space inside compact PC cases.

Powerful +12V Rail

The single +12V rail delivers up to 70.8A and provides the full 850W output capacity, ensuring stable power delivery for high-performance CPUs and graphics cards.

Comprehensive Connectivity

The SF850 includes a 24-pin ATX motherboard cable, two EPS/ATX12V CPU power cables, three PCIe 8-pin connectors, one 12VHPWR connector, multiple SATA power connections, and PATA power support for a wide range of hardware configurations.

Individually Sleeved Cables

All included cables feature individual sleeving, providing improved flexibility, easier cable management, and a clean, professional appearance.

Universal AC Input Support

Supporting 100–240V AC input and 47–63Hz frequency operation, the SF850 is suitable for use in a variety of regions and electrical environments worldwide.

Ideal for High-Performance SFF Builds

Combining compact dimensions, premium efficiency, modern ATX 3.1 compliance, and support for next-generation graphics cards, the CORSAIR SF850 Platinum is an excellent power solution for compact gaming PCs, creator systems, and enthusiast small form factor builds.