ASRock Steel Legend SL-750G 750W Power Supply - Quiet, Modular 10yr

In this review the ASRock Steel Legend SL-750G 750W is presented as a practical choice for system builders who want a modern, reliable power source without fuss. The bottom line: it is best for mid- to high-end single GPU systems that need ATX3.1 and PCIe5.1 readiness, solid electrical parts and a long warranty. The reviewer found the unit to be quietly operated, well-built with high-quality cables, and notable for its 10-year warranty and 80 PLUS Gold efficiency certification.

Key Features

• ATX3.1 & PCIe5.1 Ready: Provides compatibility with modern motherboard and GPU power delivery standards so future upgrades are easier.
• Fully Modular Cable Design: Modular cables reduce case clutter and improve airflow because you only attach what you need.
• 100% Japanese Capacitors: High-reliability capacitors improve long-term stability and reduce the chance of premature failure.
• iCool Intelligent Fan Control: The 135 mm FDB fan is quiet under typical loads and spins up only as thermal conditions require.
• Built-in 5V BOOST: Includes a 5V boost function that helps compatibility with certain front-panel and legacy devices that need stable 5V rail support.
• 10-Year Warranty: A lengthy warranty gives confidence for prolonged system use and value for the investment.

Who It's For

The SL-750G is aimed at PC builders who want a dependable, high-efficiency power supply for gaming rigs and creator systems under roughly 900W total system draw; its Gold efficiency and Japanese capacitors suit users who value longevity and quiet operation. The modular cabling and PCIe5.1 readiness make it a good pick for those planning to upgrade GPUs without replacing the PSU.

Those who should look elsewhere include users requiring ultra-lightweight mobile builds or systems that need specialized non-standard connectors. Also, very high-end multi-GPU or extreme overclocked systems drawing above the supply's comfortable range should consider higher wattage units.

Pros & Cons

Pros

• Quiet 135 mm FDB fan with intelligent control keeps noise low during everyday use.
• Strong build quality with 100% Japanese capacitors and tidy fully modular cables, praised by customers for cable quality.
• Good value for a 10-year warranty combined with 80 PLUS Gold and Cybenetics Platinum certifications.

Cons

• Physically heavier and a bit stiff in handling compared with some lighter PSUs, which several customers noted.
• Not compatible with every built-in or legacy system; ensure your case and connectors match before buying.

Specifications

Wattage	750W
Efficiency	80 PLUS Gold (Cybenetics Platinum)
Form Factor	ATX3.1
Fan	135 mm FDB fan
Cables	Fully modular design, includes 12VHPWR support
Capacitors	100% Japanese capacitors
Warranty	10 years

Our Verdict

The ASRock Steel Legend SL-750G is a sensible choice for builders who want a quiet, modern and durable power supply with long-term support; its fully modular layout, Japanese capacitors and 10-year warranty make it good value for most gaming and creator builds under 900W. It's not the lightest unit, but the build quality and efficiency justify the purchase for those prioritizing reliability.

Frequently Asked Questions

Is this PSU suitable for modern GPUs?
Yes. It is PCIe5.1 ready and includes modern power cable support suitable for current single-GPU configurations.

How loud is the fan under load?
The 135 mm FDB fan runs quietly in typical use thanks to iCool intelligent control, becoming louder only under sustained heavy loads.

Does it come with a long warranty?
Yes. The unit carries a remarkable 10-year warranty for peace of mind on long-term builds.