ASROCK 850W STEEL LEGEND SL-850G 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.

Slim Specs Table

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.

Frequently Asked Questions

Q: Is this PSU compatible with older GPUs?

A: Yes, it supports both PCIe 5.1 and older PCIe standards via included connectors.

Q: What does 80 PLUS Gold certification mean?

A: It means the PSU operates at least 87% efficiently at 20%, 50%, and 100% loads, reducing waste heat.

Q: Does this PSU support overclocking?

A: Yes, the stable 850W output and high-quality capacitors support safe overclocking of compatible components.

Q: Is the PSU fully modular?

A: Yes, all cables are detachable, allowing you to use only what you need.

Q: What is Cybenetics Platinum certification?

A: It indicates high overall efficiency and electrical performance, with lower energy waste and heat output.

Q: How quiet is this PSU under load?

A: With Lambda A+ certification and iCool mode, it remains very quiet even during heavy use.

Q: What warranty is included?

A: It is covered by the standard manufacturer warranty.

The Consultant’s verdict & warranty

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 standard manufacturer warranty, it offers strong performance with quiet, efficient operation.