Corsair SF850 Platinum (2024) PSU Review

1. Introduction2. Bundle & Cabling3. External4. Internal5. Testing Methodology and Results6. Closing Thoughts7. View All Pages

Following on from our recent review of the Corsair SF1000 Platinum power supply, today we look at its smaller sibling – the SF850. This is another new ATX 3.1, fully modular SFX design measuring a diminutive 100 x 125mm x 63.5mm, with a full 7 year warranty. Today we will find out if it is as good as the higher capacity 1000 Watt unit that walked away with our highest award.

Corsair experienced great success with their previous SF L range of power supplies. For these new versions they have improved efficiency levels while make sure the power supply is smaller to fit into even more restrictive chassis designs.

• Cybenetics 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. 6. 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.

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