Power supply ASUS ROG Loki SFX-L 850W Platinum White Edition ATX 3.0, PCIe Gen5 PSU, ARGB Fan Aura Sync - 90YE00N2-B0NA00

The ASUS ROG Loki SFX-L 850W Platinum White Edition is a compact yet serious power supply for mATX and ITX builds, where space is tight and the GPU is hungry for power. With an SFX-L form factor and 850W power output, this PSU is aimed at mid- to high-end configurations, including modern graphics cards with PCIe Gen 5 power delivery. The 80+ Platinum certification and up to 92% efficiency mean fewer losses and lower temperatures inside the case. The white body and Addressable RGB lighting are a bonus if you are going for a clean, refined build with visual impact.

What you get
With ATX 3.0 / PCIe Gen 5.0/5.1 support and a PCI-E 16-pin connector, you are ready for modern graphics cards without the need for adapters or compromises. The three PCI-E 8-pin connectors give you flexibility for older or different GPU configurations, so you can easily upgrade without replacing the PSU. The modular design helps with clean cable management – you connect only the cables you need, which is especially important in small SFX-L cases with limited airflow. Active PFC ensures the power supply operates stably within a 100–240 VAC range, which is important for long-term reliability under various grid conditions. And the 3-year warranty provides peace of mind that this component, which is the foundation of the entire build, is covered.

• 850W Power – sufficient for a powerful gaming or creative build with a high-end GPU and multi-core CPU, without being on the edge of the limit.
• 80+ Platinum certification and up to 92% efficiency – less energy lost as heat and lower overall load on the cooling system inside the case.
• SFX-L form factor with 125 mm length – ideal for compact cases, where every millimeter of space for cables and airflow matters.
• ATX 3.0 / PCIe Gen 5.0/5.1 support – readiness for current and future GPU standards, without relying on temporary solutions.
• 1x PCI-E 16-pin and 3x PCI-E 8-pin – enough options to power modern and previous generation graphics cards, including during upgrades.
• Modular design with SATA x6 and PERIPHERAL x4 – convenient connection of SSDs, HDDs, fans, and peripheral devices, without excess cables in the case.
• White chassis with Addressable RGB lighting – visually matches white or light builds and allows synchronization of lights in the system.

Who it is suitable for
This PSU is for you if you are building a compact gaming or creative machine with a modern, powerful GPU and care about high efficiency and stability. It is very suitable for SFF (small form factor) builds with a transparent panel, where the white body and RGB lighting are truly visible. It is not a particularly logical choice if you are building a super-budget configuration or do not plan a card that would benefit from ATX 3.0 / PCIe Gen 5 support.

The combination of 850W power, 80+ Platinum efficiency, SFX-L form factor, and modern PCIe Gen 5 connectors makes this power supply a very strong foundation for a compact but serious build. Add the white design with ARGB, and you get a PSU that is both practical and visually completes the entire configuration.