• Home
  • Shop
  • Recently Viewed
  • About us
  • Contact us
Login / Register
Search
Wishlist
15 items £527.19
Menu
15 items £527.19
“be quiet! Straight Power 12 power supply unit 1200 W 20+4 pin ATX ATX Black” has been added to your cart. View cart
-67%
Click to enlarge
Home Power Supply Units Seasonic FOCUS-PX-850 power supply unit 850 W 20+4 pin ATX ATX Black
Mercia 28mm Studio Pent Log Cabin With Side Shed (17x10) (5.1m x 3m) (SI-006-002-0073 EAN 5029442019116) £341.99 Original price was: £341.99.£113.99Current price is: £113.99.
Back to products
Outsunny 4.7 x 2.5FT Garden Shed, Lockable Outdoor Storage Shed with Openable Lid, Small Shed for 2 Trash Cans, Tools, Patio, Light Grey £173.99 Original price was: £173.99.£57.74Current price is: £57.74.

Seasonic FOCUS-PX-850 power supply unit 850 W 20+4 pin ATX ATX Black

£196.99 Original price was: £196.99.£65.45Current price is: £65.45.

Compare
Add to wishlist
SKU: US-15302021677438 Category: Power Supply Units
Share:
  • Description
  • Shipping & Delivery
Description

Seasonic FOCUS-PX-850 power supply unit 850 W 20+4 pin ATX ATX Black

  • 80 PLUS® Platinum certified
  • Compact Size – 140 mm deep
  • Tight Voltage Regulation
  • Cable-free Connection Design
  • S3FC – Fanless until 30 % load
  • Multi-GPU setup
  • Gold plated connectors

FOCUS PX (ONESEASONIC)
The newly upgraded FOCUS PX and GX series are the successor to the FOCUS PLUS Series, which became an instant the top seller in the power supply market after its launch in 2017. In 2019, Seasonic engineers have made improvements on the popular series, removing the inline capacitors on the supplied cables. Besides the small change in the series naming, the PSU housing and its packaging are also updated to be in line with the concept of the OneSeasonic Initiative.

80 PLUS® PLATINUM
The FOCUS PX achieves 80 PLUS® Platinum certification with its 92 % efficiency at 50 % system load.

CABLE-FREE CONNECTION DESIGN
Seasonic’s engineers have implemented a new design feature, where instead of cables; the back panel and the PCB (Printed Circuit Board) are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality.

HYBRID SILENT FAN CONTROL
The industry’s first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and cooling. This Hybrid Silent Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.

THE FAN CONTROL BUTTON
The fan control button can be found on the back of the FOCUS PLUS power supply, next to the power switch. The image here illustrates how to select different fan control modes to suit your need.

DO NOT press the button if you wish to include the Fanless Mode, which means the fan in the power supply will not spin when the power supply is under light loads. Press the button if you wish to have the fan spin at all times, even at lower loads.

FLUID DYNAMIC FAN BEARING
High performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are extremely reliable and generate considerably less operating noise and heat than ball bearing fans. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan.

HOW IT WORKS
When the fan shaft rotates, high pressure oil drifts along the grooves of the bearing sleeve to generate a thin layer of lubrication between the bearing faces. As the speed increases, so does dynamic oil pressure and the shaft is lifted from the bearing to create smooth, effortless rotations. The herringbone shape of the groves helps to efficiently channel the lubricant and avert leakage.

Power
Power protection features Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Max output current (+5Vsb) 3 A
Max output current (-12V) 0.3 A
Max output current (+5V) 20 A
Max output current (+12V) 70 A
Max output current (+3.3V) 20 A
Combined power (+5Vsb) 15 W
Combined power (-12V) 3.6 W
Combined power (+5V) 100 W
Combined power (+12V) 840 W
Combined power (+3.3V) 100 W
Input current 5.5 – 11 A
AC input frequency 50 – 60 Hz
AC input voltage 100 – 240 V
Total power 850 W
Ports & interfaces
Cabling type Fully-Modular
CPU power cable length 65 cm
CPU power connector (4+4 pin) Yes
PCI Express power cable length 75 cm
PCI Express power connectors (6+2 pin) 2
Peripheral (Molex) power cable length 470,690 mm
Peripheral (Molex) power connectors (4-pin) 5
SATA power cable length 450,810,860 mm
Motherboard power cable length 61 cm
Motherboard power connector 20+4 pin ATX
Performance
Mean time between failures (MTBF) 100000 h
Bearing technology FDB
80 PLUS certification 80 PLUS Platinum
Power supply unit (PSU) form factor ATX
Purpose PC
Design
On/off switch Yes
Fan diameter 12 cm
Product colour Black
Operational conditions
Operating temperature (T-T) 0 – 50 °C
Safety regulation & standards
Safety cTUVus, TUV, CB, CCC, BSMI, EAC, CE
Certificates
Certification WEEE, ErP Lot 6, REACH
Compliance certificates RoHS
Weight & dimensions
Height 86 mm
Depth 140 mm
Width 150 mm
Packaging data
Package type Box
Technical details
Sustainability certificates ENERGY STAR
Logistics data
Harmonized System (HS) code 84733020
  • manual pdf
  • leaflet
Shipping & Delivery

Related products

-67%
Add to cart
Quick view
Compare
Add to wishlist

be quiet! Straight Power 12 power supply unit 1200 W 20+4 pin ATX ATX Black

Power Supply Units
£180.99 Original price was: £180.99.£60.30Current price is: £60.30.
-67%
Add to cart
Quick view
Compare
Add to wishlist

Cooler Master MWE 750 Bronze 230V V2 power supply unit 750 W 24-pin ATX ATX Black

Power Supply Units
£75.99 Original price was: £75.99.£25.06Current price is: £25.06.
-67%
Add to cart
Quick view
Compare
Add to wishlist

Cooler Master MWE Gold 550 – V2 Full Modular power supply unit 550 W 24-pin ATX ATX Black

Power Supply Units
£75.99 Original price was: £75.99.£25.20Current price is: £25.20.
-67%
Add to cart
Quick view
Compare
Add to wishlist

Cooler Master V SFX Gold 750 ATX 3.0 power supply unit 750 W 24-pin ATX Black

Power Supply Units
£147.99 Original price was: £147.99.£49.00Current price is: £49.00.
-67%
Add to cart
Quick view
Compare
Add to wishlist

Corsair RM850e power supply unit 850 W 24-pin ATX ATX Black

Power Supply Units
£142.99 Original price was: £142.99.£47.60Current price is: £47.60.
-67%
Add to cart
Quick view
Compare
Add to wishlist

Seasonic FOCUS Plus 850 Gold power supply unit 850 W 20+4 pin ATX ATX Black

Power Supply Units
£162.99 Original price was: £162.99.£54.25Current price is: £54.25.
-67%
Add to cart
Quick view
Compare
Add to wishlist

Seasonic Prime GX-1000 power supply unit 1000 W 20+4 pin ATX ATX Black

Power Supply Units
£191.99 Original price was: £191.99.£63.90Current price is: £63.90.
-67%
Add to cart
Quick view
Compare
Add to wishlist

VIDA Heracles power supply unit 750 W 20+4 pin ATX ATX White

Power Supply Units
£58.99 Original price was: £58.99.£19.60Current price is: £19.60.
    • My Account
    • About Us
    • Contact Us
    • Order Tracking

    Facebook Twitter Instagram Youtube
    • Privacy Policy
    • Refund Policy
    • Shipping Policy
    • Terms of Service
    • Billing Terms and Condition
    • Copyright © 2025 ukhomeappliancestore.com. All rights reserved.
    • Menu
    • Categories
    • Home
    • Shop
    • Recently Viewed
    • About us
    • Contact us
    • Women
    • Men
    • Shop
    • Contact us
    • About us
    • Home
    • Wishlist
    • Compare
    • Login / Register
    Shopping cart
    Close
    Sign in
    Close

    Lost your password?

    No account yet?

    Create an Account
    Start typing to see products you are looking for.
    Shop
    Wishlist
    15 items Cart
    My account