Out of stock

SKU: ROG-LOKI-850P-SFX-L- Category:

Key Features

  • Manufacturer Part Number: ROG-LOKI-850P-SFX-L-GAMING
  • Efficiency: 92%
  • Number of Fans: 1
  • Modular: Yes
  • Number of +12V Rails: 1
  • Output Voltage:
    • 3.3 V DC @ 20 A
    • 5 V DC @ 20 A
    • 12 V DC @ 70.8 A
    • -12 V DC @ 0.8 A
    • 5 V DC @ 2.5 A
  • Form Factor: Internal
  • Height: 4.9″
  • Width: 4.9″
  • Depth: 2.5″
  • Weight (Approximate): 4 lb


ROG Loki 850W Platinum | 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

Lambda A+ Certification

Certified low noise levels, below 20 dB

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

COOLING | 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 | 2x 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.

Lambda A+ Certification | Quietly deviant

On average, ROG Loki emits less than 20 dB of noise – earning a coveted Cybenetics Lambda A+ certification.

ENGINEERING | 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.

EXPERIENCE | 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.



General Information
Manufacturer: ASUS Computer International
Manufacturer Part Number: ROG-LOKI-850P-SFX-L-GAMING
Manufacturer Website Address:
Brand Name: Asus ROG
Product Line: Loki
Product Model: ROG-LOKI-850P-SFX-L-GAMING
Product Name: ROG-LOKI-850P-SFX-L-GAMING 850W Power Supply
Product Type: Power Supply
Technical Information
Efficiency: 92%
Number of Fans: 1
Modular: Yes
Power Description
Number of +12V Rails: 1
Output Voltage:

  • 3.3 V DC @ 20 A
  • 5 V DC @ 20 A
  • 12 V DC @ 70.8 A
  • -12 V DC @ 0.8 A
  • 5 V DC @ 2.5 A

Physical Characteristics
Form Factor: Internal
Height: 4.9″
Width: 4.9″
Depth: 2.5″
Weight (Approximate): 4 lb

Additional information

Weight 5.51 lbs
Dimensions 3.94 × 11.22 × 7.48 in




Product Type

Number of +12V Rails


Product Family






Form Factor




Output Voltage

5 V DC @ 2.5 A


There are no reviews yet.

Be the first to review “Asus ROG ROG-LOKI-850P-SFX-L-GAMING ROG-LOKI-850P-SFX-L-GAMING 850W Power Supply”

Your email address will not be published. Required fields are marked *