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3 13 jpg Corsair HX1200i Fully Modular Ultra-Low Noise Platinum ATX 1200-Watt PC Power Supply (UK)

SF Series SF850 Fully Modular 80 PLUS Platinum SFX Power Supply (IN)

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  • 850W Continuous Power: Supplies continuous, stable power output rated at full wattage at up to 50°C ambient temperature.

  • 80 PLUS Platinum Certified: Achieves up to 92% power efficiency, lowering operating temperatures and overall electricity draw.

  • Compact SFX Form Factor: Designed for small-form-factor builds without sacrificing power delivery or efficiency.

  • Fully Modular Micro-Fit Cables: Flexible, high-density individual cables ensure clean installation and improved airflow in tight cases.

  • Zero RPM Fan Mode: 92mm cooling fan stays powered down during light workloads for zero-noise operation.

  • 100% Japanese Capacitors: Industrial-grade 105°C capacitors guarantee long-term reliability and precise voltage regulation.

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Description

Corsair SF Series SF850 is a high-performance SFX
form factor power supply designed to deliver 850 Watts of continuous, clean power to compact small-form-factor (SFF) PC builds. Certified 80 PLUS Platinum, it operates with up to 92% efficiency, minimizing heat output and reducing energy costs under heavy workloads. Featuring a fully modular cable configuration with flexible micro-fit cables, the SF850 simplifies cable routing inside tight enclosures. Equipped with a 92mm fluid dynamic bearing fan and Zero RPM mode support, it provides near-silent cooling performance during light to moderate system usage.

Feature / Specification Details
Model Name SF Series SF850
Part Number (SKU) CP-9020256-IN
Wattage 850 Watts
80 PLUS Rating Platinum (Up to 92% Efficiency)
Form Factor SFX (SFX-to-ATX Bracket Included)
Modularity Fully Modular
Fan Size 92mm
Fan Bearing Technology Fluid Dynamic Bearing (FDB)
Zero RPM Mode Yes (Fan remains off at low to medium loads)
Capacitors 100% Japanese 105°C Electrolytic
Continuous Output Temperature 50°C
Dimensions 100mm x 125mm x 63.5mm
MTBF Hours 100,000 Hours
Safety & Protection OVP, UVP, SCP, OTP, OPP

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