What is the efficiency rating of this 80 PLUS TITANIUM certified power supply under typical loads?

The power supply is 80 PLUS Titanium Certified, which indicates more than 94% efficient operation for lower power consumption, less noise, and cooler temperatures under typical loads.

How many PCIe connectors does the AX850 power supply include, and are they all modular?

The AX850 power supply includes 6 PCI-Express connectors, and it is fully modular.

What are the dimensions of the AX850 power supply, and will it fit in a standard mid-tower case?

The dimensions of the AX850 power supply are 3.39" x 5.91" x 6.69".

Is the CORSAIR AX Series AX850 compatible with an ATX motherboard?

Yes, the CORSAIR AX Series AX850 is an ATX12V power supply, which makes it compatible with ATX motherboards.

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CORSAIR AX Series AX850 CP-9020151-NA 850 W ATX12V 80 PLUS TITANIUM Certified Full Modular Power Supply

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ATX12V
Full Modular
80 PLUS TITANIUM Certified
100 - 240 V 50/60 Hz
+3.3V@20A, +5V@20A, +12V@70A, [email protected], +5VSB@3A

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Overview

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General
Brand	CORSAIR
Series	AX Series AX850
Model	CP-9020151-NA

Details
Type	ATX12V
Maximum Power	850 W
Fans	135mm FDB Cooling Fan
Main Connector	20+4Pin
+12V Rails	Single
PCI-Express Connector	6 x 6+2-Pin
SATA Power Connector	16
Max PSU Length	170 mm
Modular	Full Modular
Energy-Efficient	80 PLUS TITANIUM Certified
Over Voltage Protection	Yes
Input Voltage	100 - 240 V
Input Frequency Range	50/60 Hz
Input Current	11A - 5.5A
Output	+3.3V@20A, +5V@20A, +12V@70A, [email protected], +5VSB@3A
Connectors	1 x ATX (24-PIN) (20+4) 2 x EPS/ATX12V (8-PIN) (4+4) 6 x PCI-E (8-PIN) (6+2) 8 x SATA (4 SATA)(right angle) 8 x SATA (4 SATA)(straight) 6 x Peripheral (4-PIN) 1 x Floppy Adapter (4-PIN)

Features
Features	80 PLUS Titanium Certified: More than 94% efficient operation for lower power consumption, less noise and cooler temperatures. Zero RPM Fan Mode: At low and medium loads, the cooling fan switches off entirely for near-silent operation. World Class Electrical Performance: Superior voltage regulation and minimal ripple noise ensures the highest quality power for your PC. 135mm Cooling Fan: Low noise cooling with powerful airflow, powered by a true FDB bearing for reduced noise and longer life. 100% All Japanese 105°C capacitors: Premium internal components ensure unwavering power delivery and long term reliability. Fully Modular Cables: Only connect the cables your system needs, making clean and tidy builds easier. Three-Color Magnetic Side Labels: Customize your PSU to match the rest your system with three included magnetic side labels in red, blue or white. Ten-Year Warranty: Your guarantee of reliable operation that will last across several system builds.

Dimension & Weight
Dimensions	3.39" x 5.91" x 6.69"
Weight	4.43 lbs.

Additional Information
First Listed on Newegg	February 15, 2026

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