Corsair SF850, 850 W, 100 - 240 V, 47 - 63 Hz, 5 - 10 A, Power Supply

Tired of cramped builds that force you to compromise on performance? The Corsair SF850, 850 W, 100 - 240 V, 47 - 63 Hz, 5 - 10 A, Power Supply delivers reliable, high-efficiency power in a tiny SFX form factor, keeping your compact PC stable and ready for demanding tasks.

Usages of a 850 W Power Supply

Ideal for small-form-factor gaming rigs, workstation builds, or any compact system that still needs plenty of headroom for high-end GPUs and fast CPUs, this unit fits neatly into tight cases while providing ample power for daily use and intensive workloads.

Benefits of Corsair Power Supply

• Efficient performance: 80 PLUS Platinum rating means lower electricity bills and less heat.
• Silent operation: Built-in silent mode and a top-mounted fan keep noise to a minimum.
• Long lifespan: 100 000 h MTBF ensures the unit will outlast most components.
• Robust protection: Over-current, over-voltage, overheating and short-circuit safeguards keep your system safe.
• Flexible connectivity: Fully-modular design and multiple PCIe, SATA and EPS connectors simplify cable management.

Corsair Power Supply for Compact Builds

Choosing this power supply means you no longer have to sacrifice power for size. Its ATX 3.1 compliance guarantees compatibility with the latest CPUs and graphics cards, while the compact dimensions (63.5 mm × 100 mm × 125 mm) let it slip into the smallest cases. You also benefit from a single, high-quality fan that cools efficiently without adding audible distraction.

The unit’s top-mounted 9.2 cm fan and active cooling system maintain stable temperatures even under full load, protecting both the PSU and the components it powers. With a weight of just 2.3 kg, installation is straightforward, and the included cables reduce the need for extra purchases.

Key Features of a 850 W Power Supply

• Power protection features: Over current, Over power, Over voltage, Overheating, Short circuit. Comprehensive safeguards keep your build secure.
• Max output current (+5Vsb): 3 A. Provides reliable standby power for low-power devices.
• Max output current (+5V): 20 A. Supports a range of peripherals and USB devices.
• Max output current (+12V): 70.8 A. Delivers strong power for high-end GPUs and CPUs.
• Max output current (+3.3V): 20 A. Ensures stable operation of motherboard and RAM.
• Combined power (+12V): 850 W. Full capacity for demanding components.
• Cabling type: Fully-Modular. Lets you use only the cables you need, reducing clutter.
• PCI Express power cable length: 75 cm. Gives you reach to install large graphics cards comfortably.

Specifications