Does this PSU generate any sound while operating?

The product is certified for low noise levels, below 25 dB.

Does the fan of this PSU make noise at low RPMs?

The PSU features a 120mm fan with PWM control designed for low noise and efficient thermal management.

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Main image of ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 2 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 3 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 4 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 5 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 6 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 7 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 8 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 9 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 10 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 11 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 12 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 13 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

Alt view image 14 of 14 - ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

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ASUS ROG Loki SFX-L 850W Platinum (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready)

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Options: SFX 80+ Platinum (850W) Black

SFX 80+ Platinum (850W) White
SFX 80+ Platinum (850W) Black
SFX 80+ Platinum (750W) Black

ROG heatsinks cover critical components. Lower temps result in a longer lifespan and reduced noise
Axial-tech cooling: 120mm fan with PWM control for low noise and thermals kept in check
ATX 3.0 Compatible: ROG Loki is compliant with ATX 3.0 guidelines and bundled with a 16-pin PCIe cable that can pipe up to 600W of power to PCIe Gen 5.0 graphics cards
Lambda A Certification: Certified low noise levels, below 25 dB
80 PLUS Platinum certified: Up to 92% efficient for low heat and noise, and increased reliability
Aura Sync compatible: Ready to synchronize lighting effects across your gaming setup

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

Overview

Specs

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General
Brand	ASUS
Series	ROG LOKI
Model	ROG-LOKI-850P-SFX-L-GAMING

Details
Type	ATX 3.0 Compatible / ATX12V
Maximum Power	850 W
Main Connector	24Pin
PCI-Express Connector	3 x 6+2-Pin
SATA Power Connector	6
Max PSU Length	125 mm
Modular	Full Modular
Energy-Efficient	80 PLUS PLATINUM Certified
Protection	OPP/OVP/UVP/SCP/OCP/OTP
Input Voltage	100 - 240 V
Output	+3.3V@20A, +5V@20A, [email protected], [email protected], [email protected]
Connectors	MB 24/20-pin x 1 CPU 4+4-pin x 2 PCI-E 16-pin x 1 PCI-E 8-pin x 3 SATA x 6 PERIPHERAL x 4

Dimension & Weight
Dimensions	125 x 125 x 63.5 mm
Weight	1.815kg (single PSU)

Package
Package Content	Power Cord x 1 Motherboard Power Cable x 1 (450mm) CPU Cable x 2 (550mm) PCI-E Gen 5 16-pin Cable x 1 (450mm) PCI-E 1-to-1 Cable x 1 (450mm) PCI-E 1-to-2 Cable x 1 (450mm) SATA 1-to-3 Cable x 2 (300+200+100mm) Peripheral 1-to-4 Cable x 1 (300+100+100+100mm) Addressable RGB Cable x 1 (800mm) User Manual x 1 ATX to SFX adapter bracket x 1

Additional Information
First Listed on Newegg	June 23, 2026

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Item#: 9SIC4RUM013163

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