ASUS ROG LOKI SFX-L 1000W Platinum PSU - SFX-L, ATX 3.1
ASUS ROG
ASUS ROG LOKI SFX-L 1000W Platinum PSU - SFX-L, ATX 3.1
The ASUS ROG LOKI SFX-L 1000W Platinum PSU is a compact, high-efficiency power supply built for small-form-factor gaming rigs that demand both performance and quiet operation. It delivers full 1000W output in a space-saving SFX-L chassis while meeting ATX 3.1 standards for next-generation graphics cards. Dual ball bearings, 0dB fan technology, and Cybenetics Lambda A certification keep noise below 25 dB on average.
Why this product
PCIe Gen 5.1 Ready
Bundled 16-pin cable delivers up to 600W directly to next-gen graphics cards, fully compliant with ATX 3.1 specifications.
Quiet by design
Cybenetics Lambda A certified noise level under 25 dB. PWM-controlled 120mm axial-tech fan shuts off entirely below 40% load.
80 PLUS Platinum efficiency
Up to 92% efficiency reduces heat output and power waste. Paired with low-ESR Japanese capacitors for improved stability.
Dual ball bearing fan
80,000-hour lifespan—twice that of sleeve bearings—with minimal noise and reliable long-term cooling.
SFF-optimized form factor
Compact 125 × 125 × 63.5 mm chassis fits demanding small-form-factor builds without compromising 1000W output.
10-year warranty
Long coverage reflects confidence in component quality and engineering.
- Form FactorSFX-L
- Total Output1000W
- Efficiency Rating80 PLUS Platinum
- Noise LevelUnder 25 dB (Cybenetics Lambda A)
- 12V Rail Load83.3A
- Warranty10 years
- Dimensions125 × 125 × 63.5 mm
- SKUASU-2290
- EAN4711081721901
- ATX 3.1 compliant with tighter voltage and current regulation for modern platforms.
- PCIe Gen 5.1 graphics cards via bundled 16-pin cable rated to 600W.
- Small-form-factor cases: fits 125 × 125 × 63.5 mm footprint.
- Multi-rail design with separate 12V line capable of 83.3A maximum load per rail.
- 0dB fan operation requires PSU load at or below 40%; fan runs continuously above that threshold.
Best for
- Small-form-factor PC builders
- Silent or low-noise builds
- Next-gen gaming rigs with PCIe Gen 5.1 cards
- Energy-conscious users seeking high efficiency
- Builders prioritizing long-term reliability
Trade-offs
- Large tower builds — SFX-L form factor is designed for compact cases only.
- Dual-PSU configurations — no daisy-chain or redundancy features specified.
- Workstations demanding continuous full load — cooler performance peaks during idle and low-load operation.
Taking after the ROG Thor, the ROG Loki SFX-L 1000W 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.
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
Dual ball bearings boast a remarkable lifespan of 80,000 hours, lasting twice as long as sleeve bearings and exceeding even fluid dynamic bearings. Ensuring long-lasting, reliable cooling with minimal noise for ROG Loki SFX-L series.
0dB Technology — Quiet intelligence
To reduce noise output, the PWM-controlled fan shuts off entirely when the PSU load is 40% or below.
ENGINEERING
High-performance Copper Pins
Upgraded PCIe® connectors featuring superior thermal conductivity ensure cooler operation and improved power delivery efficiency. This translates to a significant 29% reduction in connector temperatures (up to -12.28°C), promoting optimal performance and stability for even the most demanding graphics cards.
80 PLUS Platinum & Cybenetics Platinum Certified — Effortless output
The ROG Loki 1000W Platinum achieves 80 PLUS Platinum and Cybenetics Platinum certifications by leveraging low-ESR Japanese capacitors that deliver stability and efficiency, leading to improved power consumption, heat generation, acoustics and reliability.
ATX 3.1 Compatible — Step into the future
The latest power specification updates have landed. ATX 3.1 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 5.1 graphics cards is bundled with the PSU, bringing large-scale capabilities to SFF rigs.
Cybenetics Lambda A Certification — Quietly deviant
On average, ROG Loki SFX-L 1000W Platinum PSU emits less than 25 dB of noise – earning a coveted Cybenetics Lambda A certification.
EXPERIENCE
ARGB-illuminated Fan & Aura Sync
Ready to synchronize lighting effects across your gaming setup.
10-year Warranty
General
| Brand | ASUS ROG |
|---|---|
| Model | LOKI SFX-L 1000W Platinum |
| Form Factor | SFX-L |
| Weight | 1.83 kg |
| Hazardous Materials | RoHS Compliant |
Power Output
| Total Output | 1000W |
|---|---|
| +3.3V Rail | 20A / 110W combined |
| +5V Rail | 20A / 110W combined |
| +12V Rail | 83.3A / 1000W |
| -12V Rail | 0.8A / 9.6W |
| +5V Standby | 2.5A / 12.5W |
| AC Input Range | 100–240V AC |
Cooling & Acoustics
| Fan Design | 120mm Axial-Tech with dual ball bearings |
|---|---|
| Fan Bearing Lifespan | 80,000 hours |
| 0dB Technology | Fan off below 40% load |
| Noise Certification | Cybenetics Lambda A |
| Noise Level (Average) | Under 25 dB |
Efficiency & Standards
| Efficiency Rating | 80 PLUS Platinum |
|---|---|
| Max Efficiency | Up to 92% |
| ATX Standard | ATX 3.1 |
| PFC Type | Active PFC |
| Cybenetics Rating | Platinum |
| MTBF | >120,000 hours @ 25°C |
Protection & Features
| Protection Features | OPP, OVP, UVP, SCP, OCP, OTP |
|---|---|
| PCIe Gen 5.1 Cable | 16-pin (600W rated) |
| RGB Lighting | ARGB-illuminated fan with Aura Sync |
| Warranty | 10 years |
Included Cables
| Power Cord | 1 |
|---|---|
| Motherboard Power (450mm) | 1 |
| CPU Cable (550mm) | 2 |
| PCIe Gen 5.1 16-pin (450mm) | 1 |
| PCIe 16-pin to 8-pin+8-pin (450mm) | 1 |
| PCIe 1-to-1 (450mm) | 1 |
| SATA 1-to-3 (per unit) | 2 |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.