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Black rectangular ATX power supply unit with modular cable ports and cooling fan visible

Corsair

Corsair HX850i 850W power supply CP-9020073-NA

SKU CH-8W0Q-EN8BB MPN CP-9020073-NA

Fully modular 850W ATX supply with 80 PLUS Platinum efficiency and Corsair Link monitoring

  • Weight8.7
  • 850 W output powers high-end builds
  • 80 PLUS Platinum efficiency cuts heat and running cost
  • Japanese 105 °C capacitors ensure long-term reliability
  • Fully modular low-profile cables simplify clean assembly
  • Corsair Link monitoring gives software control over rails and fan speed

HX850i Platinum power supply

The Corsair HX850i is an 850W fully modular ATX power supply built with all Japanese 105c capacitors. It delivers 80 PLUS Platinum efficiency and supports Corsair Link Digital monitoring. The unit is designed for high performance PCs where reliability is essential.

Upgrade from lower efficiency units

Replacing a standard Bronze or Gold unit with this Platinum model cuts waste heat and lowers running costs. The jump is worth it when the system runs heavy loads for long periods and the builder wants tighter voltage control. Zero RPM Fan Mode keeps the unit silent at low and medium loads.

Fully modular low profile cables

A fully modular, low profile cable set simplifies cable routing and leaves more room for airflow inside the case. The supply fits standard ATX bays and provides the connectors needed for modern CPUs and GPUs. Corsair Link software lets the user switch between single rail and multi rail operation from the desktop.

Points forts

  • 850 W output powers high-end builds
  • 80 PLUS Platinum efficiency cuts heat and running cost
  • Japanese 105 °C capacitors ensure long-term reliability
  • Fully modular low-profile cables simplify clean assembly
  • Corsair Link monitoring gives software control over rails and fan speed

Caractéristiques

BrandCORSAIR
ModelCP-9020073-NA
Weight8.7

Questions sur cet article

What form factor does this 850W unit use so I can check case clearance?

The HX850i follows the standard ATX12V/EPS12V form factor, so it fits any case designed for a regular ATX power supply.

How do I connect the Corsair Link Digital cable and what is the common mistake?

Plug the supplied USB cable into the Link port on the PSU and a motherboard USB header; the step often missed is installing the Corsair Link software before the firmware update.

Which capacitors are used and do they affect long-term reliability?

All capacitors are Japanese 105c rated, which helps maintain stable output and extends service life under continuous high-load operation.

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