Corsair SF Series SF850 SFX Power Supply 80 PLUS Platinum ATX 3.1 PCIe 5.1 850W Black
Corsair SF Series SF850 SFX Power Supply 80 PLUS Platinum ATX 3.1 PCIe 5.1 850W Black, photo 2
Corsair SF Series SF850 SFX Power Supply 80 PLUS Platinum ATX 3.1 PCIe 5.1 850W Black, photo 3
Corsair SF Series SF850 SFX Power Supply 80 PLUS Platinum ATX 3.1 PCIe 5.1 850W Black, photo 4
Corsair SF Series SF850 SFX Power Supply 80 PLUS Platinum ATX 3.1 PCIe 5.1 850W Black, photo 5
Corsair SF Series SF850 SFX Power Supply 80 PLUS Platinum ATX 3.1 PCIe 5.1 850W Black, photo 6
Corsair SF Series SF850 SFX Power Supply 80 PLUS Platinum ATX 3.1 PCIe 5.1 850W Black, photo 7
Corsair

Corsair SF Series SF850 SFX Power Supply 80 PLUS Platinum ATX 3.1 PCIe 5.1 850W Black

SKU HC-931286MPN CP-9020256-EU

  • 850 W
  • 80 Plus Platinum
  • SFX

Highlights

  • 850 W continuous power in a 100 mm deep SFX chassis
  • 80 PLUS Platinum and Cybenetics Platinum efficiency ratings
  • ATX 3.1 and PCIe 5.1 ready with native 12V-2x6 cable
  • Fully modular design with flat black cables included
  • 92 mm hydrodynamic bearing fan with Zero RPM mode
  • Seven-year manufacturer warranty

Key specs

Wattage
850 W
Efficiency
80 Plus Platinum
Fully modular
Yes
Form factor
SFX
Fan Size
92 mm
ATX Standard
ATX 3.1
All specifications
$169.99
  • ≈ 0.002203 BTC
  • ≈ 0.07424 ETH
  • ≈ 170.16 USDT

In stock Ships by Tue, Nov 10 when paid today.

  • Delivery to the United States: $39.90 DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today
  • Rate locked at checkout Up to 60 min to send BTC, 30 min for ETH and USDT
  • New, sealed and genuine Manufacturer warranty: 7 years
  • 30-day returns Unused items in original packaging
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Overview

An 850-watt SFX power supply built for small-form-factor PCs. It delivers ATX 3.1 and PCIe 5.1 compliance with Platinum efficiency and fully modular cabling.

Compact High-Wattage Design

The unit measures 125 mm wide, 63.5 mm tall, and only 100 mm deep, yet supplies a full 850 W on a single +12 V rail. It fits standard SFX brackets and leaves room for large graphics cards in tight cases.

Efficiency and Cooling

Dual Platinum certifications from 80 PLUS and Cybenetics ensure low waste heat. A 92 mm hydrodynamic-bearing fan spins only when needed, staying silent under light loads through a user-switchable Zero RPM mode.

Modern Connectivity

Native ATX 3.1 and PCIe 5.1 support includes one 12V-2x6 connector, three 6+2-pin PCIe plugs, two 4+4-pin EPS cables, and eight SATA plus three Molex connectors across the modular ports.

Included Accessories

The box contains the PSU, a 300 mm 24-pin motherboard cable, two 400 mm CPU cables, a 400 mm dual 8-pin to 12V-2x6 adapter, three 400 mm PCIe cables, two SATA cables, one 90-degree PATA cable, mounting screws, and a power cord.

SF Series SF850 SFX Power Supply 80 PLUS Platinum ATX 3.1 PCIe 5.1 850W Black specifications

General
BrandCorsair
Manufacturer part no.CP-9020256-EU
EAN0840006663287
Warranty7 years (manufacturer)
Fan Specifications
Fan Size92 mm
Power Supply
PSU FormatSFX
ATX StandardATX 3.1
12V Distributionsingle rail
Modular Power SupplyYes
Modular Typefully modular
Power Specifications
Total Power Output850 W
Power Output +3.3V66 W
Power Output +5V100 W
Power Output +3.3V & +5V (combined)130 W
Power Output +12V rails850 W
Power Output +5Vsb15 W
Cable Specifications
Max. CPU Power Cable Length400 mm
Max. 24-Pin Motherboard Power Cable Length300 mm
Max. 12V-2x6 Cable Length400 mm
Max. PCIe Power Cable Length400 mm
Max. SATA Power Cable Length445 mm
Max. Molex Cable Length330 mm
Cooling
Semi Passive Power SupplyYes
Switchable Semi Passive ModeYes
Internal Ports
CPU Power Connectors 12V ATX/EPS4
CPU Power Supply2x 4+4-Pin
12VHPWR PCIe Power Connectors1
6+2 Pin PCIe Power Connectors3
SATA Power Connectors8
4 Pin Molex Power Connectors3
Efficiency Class
80PLUS Efficiency80 PLUS Platinum
Cybenetics Efficiency Level ETA (230V)PLATINUM
Cybenetics Noise Level LAMDA (230V)Standard++
Lighting
Lighting / RGBNo
Color
Primary ColorBlack
Dimensions
Length / Depth100 mm
Width125 mm
Height63.5 mm

Specifications come from the manufacturer and can change without notice. Check the box contents and compatibility before ordering; our team answers questions within one business day.

In the box

  • 1x Corsair SF Series SF850 SFX Power Supply
  • 1x 18-Pin + 10-Pin to 24-Pin (300 mm)
  • 2x 8-Pin EPS / ATX 12 V to 4+4-Pin CPU (400 mm)
  • 1x 8-Pin + 8-Pin to 12V-2x6 (400 mm)
  • 3x 8-Pin to 6+2-Pin PCIe (400 mm)
  • 1x 6-Pin to SATA (445 mm / 100-115-115-115 mm)
  • 1x 6-Pin to SATA 90 Degree (445 mm / 100-115-115-115 mm)
  • 1x 6-Pin to PATA 90 Degree (330 mm / 100-115-115 mm)
  • 1x Accessory Kit
  • 1x Power Cord

Shipping & returns

Delivery to the United States: $39.90DHL Express Worldwide · arrives Wed, Nov 11 – Mon, Nov 16 if paid today

Ships from our warehouse in Germany: in stock, it leaves within 1–2 business days, tracked to the door.
ToBusiness daysThis item
GermanyDHL Paket1–2Free
Other EU countriesDHL Parcel International2–8$11.90–$15.90
UK, Switzerland and NorwayDHL Parcel International3–7$24.90
United States and CanadaDHL Express Worldwide2–5$39.90
Asia and the Middle EastDHL Express Worldwide2–5$49.90
Australia and New ZealandDHL Express Worldwide3–6$59.90
  • Discreet packaging Plain, unbranded box — no crypto or brand references outside
  • Returns 30 days for unused items in original packaging; faulty items are on us
Rates and delivery times by country

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