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Power supplies

SF850 850 W 80 PLUS Platinum fully modular power supply

Model CP-9020256
Also listed as
CP-9020256-NA

850 W SFX power supply from the CORSAIR SF range with 80 PLUS Platinum certification and fully modular cabling. It follows ATX12V 3.1, includes a 12VHPWR GPU power cable and has a Zero RPM fan mode.

Continuous power
850 W
Efficiency
80 PLUS Platinum
Cabling
Fully modular
Form factor
SFX
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Overview Specifications Media Compatibility Support
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Overview

Highlights

  • 80 PLUS Platinum certified
  • ATX 3.1 compliant, supporting PCIe 5.1
  • Fully modular cables with Type 5 Micro-Fit connectors
  • 92 mm PWM fan with Zero RPM mode

Output and connectors

Rated output
850 W
Efficiency
80 PLUS Platinum
Cabling
Modular
Fan
92 mm
AC input
100 to 240 V

At a glance

Wattage
850 W
Efficiency
80 Plus Platinum
Cabling
Modular
Full specifications

Specifications

General

Form factor
SFX
ATX12V version
3.1
EPS12V version
2.92
Cabling
Fully modular
Cable type
Type 5
Multi-GPU ready
Yes

Output and efficiency

Continuous power
850 W
Total power (power table)
850 W
80 PLUS rating
Platinum
Cybenetics efficiency rating
Platinum
Cybenetics noise rating
A-
Continuous output rated temperature
50 °C

Input

AC input
100 to 240 V
Input current
10 A to 5 A
Frequency
47 to 63 Hz

Connectors

ATX 24-pin connectors
1
SATA connectors
8
PATA (Molex) connectors
3
Cables supplied (total connectors)
Modular ATX Cable (24-pin): 1EPS / ATX 12V 8-pin (4+4): 2PCIe 8-pin (6+2): 312VHPWR (12+4) pin: 1SATA (4 Straight SATA): 4SATA (4 Right SATA): 4PATA (3 PATA): 3

Cooling

Fan size
92 mm
Fan bearing
Fluid Dynamic Bearing
Zero RPM fan mode
Yes

Protection and reliability

MTBF
100,000 hours

Size and weight

Weight
2 kg

Warranty and contents

Warranty
7 years
In the box
SF Series SFX Power Supply, Power cord, Mounting screws, Cable ties

Specifications are taken from the manufacturer's published information and may change. Confirm critical values with our sales desk before ordering.

Corsair product page

Media

Photos 4

Downloads

No downloads are listed for this model yet. Drivers, firmware and manuals are available from the brand's support site.

Official information

Corsair product page for CP-9020256 corsair.com

Compatibility

Graphics cards

Cards whose recommended power supply is 850 W or less, per the card specifications.

All 68 graphics cards

Cabinets

Check the cabinet's power supply mount and maximum PSU length before ordering.

All 77 cabinets

Parts to plan with this power supply

Check sockets, memory type, power connectors and dimensions against the specifications before ordering, or ask our sales desk to confirm a build.

Support

Warranty and repairs

Warranty is as per Corsair’s terms for this model. For products bought from us, call our service team with the invoice number, the model and the product’s serial number.

From Corsair

Practical notes

  1. Do not mix modular cables between different power supply models.
  2. Check the PCIe and CPU power connectors your build needs.

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Pairs with

Corsair CP-9020256 1 / 4