Professional Series™ Gold AX850 — 80 PLUS® Gold Certified Fully-Modular Power Supply

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Quick Overview

The Corsair AX850 power supply offers 80 Plus Gold levels of energy-efficiency, and the power needed for high-end, multi-GPU gaming PCs. It is built to Corsair’s renowned quality standards to provide enthusiasts with the one of the highest-quality 850 watt PSU available.

Professional Series™ Gold AX850 — 80 PLUS® Gold Certified Fully-Modular Power Supply

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A Fully Modular Cabling System

All cables detach from the power supply. During installation, this gives you the flexibility of using only the cables you need for a clean system build with optimal airflow. And, when it's time to replace or upgrade your power supply, it can be removed from your system without interfering with your cabling — the cables stay in place and connect to your new fully-modular Corsair power supply.

Incredible Efficiency

With 90% efficiency at 50% load, the Corsair Professional Series Gold power supply runs quieter, generates minimal excess heat, and saves you money every month. It's earned the 80 Plus® Gold seal of approval, your guarantee that you're making the right choice for smart,efficient power delivery.

 

Corsair Professional Series Gold AX850 features:

  • Supports the latest ATX12V v2.31 and EPS 2.92 standards and is backward compatible with ATX12V 2.2 and ATX12V 2.01 systems
  • An ultra-quiet 120mm double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature
  • 80 Plus Gold certified to deliver at least 90% efficiency at 50% load
  • Active Power Factor Correction (PFC) with PF value of 0.99
  • Universal AC input from 90~264V
    • No more hassle of flipping that tiny red switch to select the voltage input!
  • A dedicated single +12V rail offers maximum compatibility with the latest components
  • Over-voltage and over-current protection, under-voltage protection, and short circuit protection provide maximum safety to your critical system components
  • High-quality Japanese capacitors provide uncompromised performance and reliability
  • Completely modular cable system allows you to use only the cables you need
    • Power supply upgrade and replacement is easy, as the cables only need to be disconnected at the power supply
  • Low-profile, flat cable design reduces air friction and helps maximize airflow through your computer's chassis
  • A seven year warranty and lifetime access to Corsair's legendary technical support and customer service
  • Dimensions: 150mm(W) x 86mm(H) x 160mm(L)
  • MTBF: 100,000 hours
  • Safety Approvals: UL, CUL, CE, CB, FCC Class B, TÜV, CCC, C-tick

Additional Information

SKU CMPSU-850AX-2
Warranty 7 years
Dimension 5.9"(W) x 3.4"(H) X 6.3"(L); 150mm(W) x 86mm(H) x 160mm(L)
Power 850 Watts
80 Plus Gold
ATX Connector 1
EPS Connector 2
PCI-E Connector 4
4 Pin Peripheral Connector 8
SATA Connector 12
Floppy Connector 2
MTBF 100,000 hours
Description Ultra Low Noise — Hybrid Silent Fan Control

The Corsair AX850's energy-efficient design allows it to operate reliably with minimal cooling, and hence very low noise levels. The AX850's Hybrid Silent Fan Control technology offers three modes of cooling, depending on the load level. This includes a fanless mode of operation (0 rpm) up to about 20% load, a quiet, low fan speed cooling mode for typical loads up to around 50% load, and a higher performance cooling mode for more demanding loads. Noise levels still remain low even when fan speeds start to climb, thanks to the use of a premium-quality 120mm San Ace fan from industry-leader, Sanyo Denki.

Power Supply Specifications

CMPSU-850AX
AC Input 90-264V ~ 15A 50/60Hz
DC Output +3.3V +5V +12V -12V +5Vsb
Max. Current 25A 25A 70A 0.5A 3A
Max Combined Wattage 125W 840W 6W 15W
850 @ 50°C ambient temperature

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