ASRock 850W ATX 3.1 PSU

ASRock 850W Steel Legend SL-850G | ATX 3.1 PCIe 5.1 PSU

The ASRock PSU 850W ATX 3.1 PCIe 5.1 90-UXS085-GFGAAA delivers 850W of reliable, high-efficiency power for demanding gaming and workstation builds. Built to ATX 3.1 and PCIe 5.1 standards, it supports the latest GPUs with clean, stable power delivery. With 80 PLUS Gold efficiency and Cybenetics Platinum certification, it balances performance with low noise output.

Specifications

Modular Design for Cleaner Builds

The fully modular cable design lets you connect only the cables you need, reducing clutter inside your case. This improves airflow, makes cable routing easier, and gives your build a cleaner, more professional look. Fewer unused cables also mean less dust accumulation over time.

Native 12V-2×6 Connector for Next-Gen GPUs

Equipped with a native 12V-2×6 connector, this PSU is ready for the latest PCIe 5.1 graphics cards that demand higher power delivery. This ensures stable, uninterrupted power to your GPU even under heavy gaming or rendering loads, protecting your hardware from instability.

Japanese Capacitors for Long-Term Reliability

Built with 100% highly reliable Japanese capacitors, the PSU offers superior durability and consistent performance over its lifespan. Japanese capacitors are known for better heat resistance and lower failure rates, making this unit a dependable choice for long-term use.

Silent Operation with Intelligent Cooling

The 135mm striped fan with iCool mode adjusts its speed based on system load, keeping noise to a minimum during light tasks while ramping up only when needed. Cybenetics Lambda A+ certification confirms exceptionally low acoustic output, ideal for quiet environments.

Box Contents

• ASRock Steel Legend SL-850G PSU
• Modular cables (as per configuration)
• Mounting screws
• User manual

Check before you buy

• Confirm your GPU requires PCIe 5.1 support and a 12V-2×6 connector.
• Verify your case has enough clearance for a standard ATX PSU.
• Check that your system’s total power draw stays within 850W.
• Ensure your motherboard and components are compatible with ATX 3.1.

Questions and answers

Our verdict

The ASRock 850W Steel Legend SL-850G is an excellent choice for gamers and professionals building high-end systems with the latest GPUs. Its ATX 3.1 and PCIe 5.1 readiness, modular design, and Japanese capacitors ensure both future-proofing and reliability. Covered by the applicable manufacturer warranty, it offers strong performance with quiet, efficient operation.