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Asus 850W ROG LOKI SFX-L Platinum PSU, Small Form Factor, Fully Modular, 80+ Platinum, PCIe 5.0, 0dB Fan Button, RGB, ATX-to- SFX Bracket

Original price £249.99 - Original price £249.99
Original price
£249.99 (incl. VAT)
£249.99 - £249.99
Current price £249.99 (incl. VAT)

Flexible credit available

In-Stock-Available (219 Quantity)


The Quietest SFX-L PSU

Taking after the ROG Thor, the ROG Loki SFX-L 850W Platinum brandishes the same enthusiast-grade components and features, all packed into an SFX-L form factor. Boasting quiet operation and high performance, the Loki is primed to power your next SFF build.
  • Axial-Tech Cooling - 120mm fan with PWM control for low noise and thermals kept in check
  • Compact Form Factor - SFX-L: 125 x 125 x 63.5 mm
  • PCIe Gen 5.0 Ready - 16-pin cable included to pipe up to 600W power to PCIe 5.0 graphics cards
  • Future Ready - Tighter voltage and current regulation
  • 80 PLUS Platinum Certified - Up to 92% efficient for low heat and noise, and increased reliability
  • ARGB-Illuminated Fan & Aura Sync - Ready to synchronize lighting effects across your gaming setup


ROG Heatsinks

Cool under pressure
ROG heatsinks facilitate lower temperatures, longer component lifespan, and extended 0dB operation.

Axial-tech Fan Design

Better, faster, stronger
Axial-tech fan design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure. For ROG Loki PSUs, we've scaled that design to 120mm so it keeps things cool at low RPMs while producing less noise.

Dual Ball Fan Bearings

2 x longer lifespan
The fan impeller spins on a dual ball bearing setup that will last up to twice as long as a sleeve bearing design.

0Db Technology

Quiet intelligence
To reduce noise output, the PWM-controlled fan shuts off entirely when the PSU load is 40% or below.

80 PLUS Platinum Certified

Effortless output
Low-ESR Japanese capacitors further improve efficiency and reduce heat, readying ROG Loki to reliably fuel your build for years to come.

ATX 3.0 Compatible

Step into the future
The latest power specification updates have landed. ATX 3.0 ushers in tighter voltage and current regulation guidelines for next-gen hardware - and ROG Loki steps ahead of the curve by being fully compliant. A 16-pin PCIe cable ripe for piping up to 600W of power to PCIe Gen 5.0 graphics cards is bundled with the PSU, bringing large-scale capabilities to SFF rigs.
ARGB-illuminated Fan & Aura Sync

Magical glow
The Loki's 120 mm fan features eight addressable LEDs ready to be customized with Aura Sync to create coordinated lighting patterns across your build.
* If the connector cable is not used, the default color effect is rainbow.
* To enjoy Aura Sync, you’ll need an Aura Sync-compatible ASUS or ROG motherboard. Similarly, the Smart Mode lighting effect, which reflects GPU temperature, requires use of a compatible ASUS or ROG graphics card.

10-year Warranty

A decade of power
We're so confident about the reliability of the ROG Loki SFX-L 1000W Platinum that we back it with a 10-year worldwide warranty.
*Core product operation is guaranteed for 10 years. The RGB LEDs are subject to a 3-year warranty.




  • Form Factor: SFX-L
  • Series: Asus ROG LOKI SFX-L
  • Wattage: 850 W
  • Modular: Fully Modular
  • Compatability: ATX 3.0 compatible
  • #Hide#Wattage Range: 800 - 860W
  • Connectors: 1 x MB 24/20-pin
    2 x CPU 4+4-pin
    1 x PCI-E 16-pin
    3 x PCI-E 8-pin
    6 x SATA
  • AC Input: 100-240Vac
  • Fan Type: 120mm PWM ARGB-Illuminated fan
    Axial-tech Fan Design
    Dual Ball Fan Bearings
    0dB Technology
    0dB Fan Button
  • Fan Bearing: Ball Bearing
  • Noise: Low noise with 0dB technology
  • 80+ Certification: 80+ Platinum
  • Efficiency: Up to 92% efficient
  • Protection: OPP/OVP/UVP/SCP/OCP/OTP
  • Additional Features: See Overview
  • Package Contents: 1 x Power Cord
    1 x Motherboard Power Cable (450mm)
    2 x CPU Cable (550mm)
    1 x PCI-E Gen 5 16-pin Cable (450mm)
    1 x PCI-E 1-to-1 Cable (450mm)
    1 x PCI-E 1-to-2 Cable (450mm)
    2 x SATA 1-to-3 Cable (300+200+100mm)
    1 x Peripheral 1-to-4 Cable (300+100+100+100mm)
    1 x Addressable RGB Cable (800mm)
    1 x User Manual
    1 x ATX to SFX adapter bracket
  • Weight/Dimensions: 1.815 kg
    125 x 125 x 63.5 mm
  • Package Weight: 2.6000 kg
  • Warranty: 10 Years
Brand New
Part Number

3 Years warranty

Parts and Labour Included. Upgrade and extend to 5 Years in the addons section.


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Returns Full 30-day Return and Refund Period if you aren’t happy or change your mind. Full Returns Information