ASRock Steel Legend SL-750G
- Wattage:
- 750 W
- 80 PLUS Rating:
- Gold
- Modularity:
- Fully Modular
- ATX Standard:
- ATX 3.1
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Manufacturer: ASRock Last updated: September 8, 2026
ASRock Steel Legend SL-750G (750W/80+ Gold with Cybenetics Platinum Real-World Performance/Fully Modular/Distinctive Design) Review
The ASRock Steel Legend SL-750G is specifically called out as a winning combination of genuine Platinum-level real-world efficiency, independently verified by Cybenetics testing, and a stand-out design that extends ASRock's Steel Legend aesthetic line, familiar from the company's motherboards, into the power supply category. It carries an 80+ Gold certification on paper but tests at Cybenetics Platinum level in practice, a genuinely strong result that outperforms its official badge.
The ASRock Steel Legend SL-750G is specifically called out as a winning combination of genuine Platinum-level real-world efficiency, independently verified by Cybenetics testing, and a stand-out design that extends ASRock's Steel Legend aesthetic line, familiar from the company's motherboards, into the power supply category. It carries an 80+ Gold certification on paper but tests at Cybenetics Platinum level in practice, a genuinely strong result that outperforms its official badge.
Wattage and Efficiency
750W with Gold certification and independently measured Platinum-tier real-world efficiency gives this unit a genuine value edge: buyers get performance exceeding what the official 80+ badge promises, a rare and worthwhile bonus in a category where efficiency claims aren't always independently verified.
ATX 3.1 Compliance and Connector Design
ATX 3.1 and PCIe 5.1 readiness with a dual-color 12V-2x6 cable handles modern GPU transient power spikes correctly, and the dual-color cable design is a genuinely practical touch for builders who want to visually confirm correct cable orientation during installation.
Modularity and Cabling
Fully modular cabling supports clean case routing, standard at this price and wattage tier from an established motherboard-and-components manufacturer extending into the PSU space.
Design and Build
The Steel Legend aesthetic gives this unit a distinctive visual identity that stands out among the largely utilitarian designs common across the PSU category, a genuine differentiator for builders assembling a Steel Legend-themed system around ASRock's matching motherboards and other components. A 10-year warranty matches the strong terms offered by established premium brands.
Comparison to Sibling Products
Against the Cooler Master MWE Gold 750 V4, covered elsewhere on this site, this ASRock unit's independently verified Platinum-level real-world performance despite its Gold badge gives it a genuine efficiency edge at a similar wattage tier. Against the Corsair RM850x, also covered elsewhere on this site, that unit offers more headroom at 850W, while this ASRock model's specific advantage is exceeding its own efficiency badge and matching a Steel Legend build aesthetic.
Who This Power Supply Is Actually For
Buyers building a Steel Legend-themed system who want matching PSU aesthetics. A genuine visual differentiator within the category.
Anyone who wants efficiency performance that exceeds the official badge. The independently verified Cybenetics Platinum result here is a real bonus over the Gold certification alone.
Not for builds needing more than 750W of headroom. An 850W or higher unit, several covered elsewhere on this site, is the right tier for more demanding GPU pairings.
Specifications
Identity
| Brand | ASRock |
|---|---|
| Model Number | Steel Legend SL-750G |
Output and rails
| Peak Excursion Wattage | 1500 W |
|---|---|
| +12V Rail Amperage | 62.5 A |
| Single +12V Rail | Yes |
Standards and compliance
| PCIe CEM Standard | PCIe 5.1 |
|---|---|
| Hold-Up Time | 16.3 ms |
Efficiency and noise
| Measured Avg Efficiency | 90.08 % |
|---|---|
| Measured Average Noise | 18.76 dBA |
GPU power delivery
| Max Watts Per GPU Conn | 600 W |
|---|
Connector inventory
| EPS 8-pin Connectors | 2 |
|---|---|
| SATA Connectors | 9 |
| Molex Connectors | 3 |
Form factor and fit
| Length | 150 mm |
|---|---|
| Colour | Black |
Cooling
| Fan Bearing | Fluid Dynamic |
|---|---|
| Zero-RPM Switchable | Yes |
Build quality
| MTBF | 100000 hours |
|---|
Cables
| Modularity | Fully Modular |
|---|---|
| Cable Type | Flat Ribbon |
Monitoring, protection and price
| Protections | OCP, SCP, OVP, UVP, OTP, OPP |
|---|---|
| Price | 69.99 USD |
| Warranty | 10 years |
| Wattage | 750 W |
|---|---|
| 80 PLUS Rating | Gold |
| ATX Standard | ATX 3.1 |
| Form Factor | ATX |
| Cybenetics Efficiency | Platinum |
| Cybenetics Noise | A+ |
| 12V-2x6 Connectors | 1 |
| Zero-RPM Mode | Yes |
| Sleeved Cables | No |
| PCIe 8-pin Connectors | 2 |
| Connector Count | 1x 24-pin ATX, 2x EPS 4+4, 1x 12V-2x6, 2x PCIe 6+2-pin, 9x SATA, 3x Molex |
| Fan Size | 135 mm |
| Fan Model / Bearing | 135mm striped axial fluid dynamic bearing (RL4ZS1352512HH) |
| OEM / Platform | HEC |
| Japanese Capacitors | Yes |
| Source URL | https://www.asrock.com/Power-Supply/SteelLegend/SL-750G/ |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Buyers building a Steel Legend-themed system who want matching PSU aesthetics. A genuine visual differentiator within the category.
- Anyone who wants efficiency performance that exceeds the official badge. The independently verified Cybenetics Platinum result here is a real bonus over the Gold certification alone.
Not for
- Not for builds needing more than 750W of headroom. An 850W or higher unit, several covered elsewhere on this site, is the right tier for more demanding GPU pairings.
FAQs
What are the key specifications of the ASRock Steel Legend SL-750G (750W/80+ Gold with Cybenetics Platinum Real-World Performance/Fully Modular/Distinctive Design)?
The ASRock Steel Legend SL-750G (750W/80+ Gold with Cybenetics Platinum Real-World Performance/Fully Modular/Distinctive Design) is a power supply from ASRock. Key specs: Wattage 750 W, 80 PLUS Rating Gold, Cybenetics Efficiency Platinum, Modularity Fully Modular, ATX Standard ATX 3.1.
Will the ASRock Steel Legend SL-750G (750W/80+ Gold with Cybenetics Platinum Real-World Performance/Fully Modular/Distinctive Design) work with my current setup?
The ASRock Steel Legend SL-750G (750W/80+ Gold with Cybenetics Platinum Real-World Performance/Fully Modular/Distinctive Design) lists Wattage is 750 W. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the ASRock Steel Legend SL-750G (750W/80+ Gold with Cybenetics Platinum Real-World Performance/Fully Modular/Distinctive Design) best suited to?
It suits buyers building a steel legend-themed system who want matching psu aesthetics. a genuine visual differentiator within the category., anyone who wants efficiency performance that exceeds the official badge. the independently verified cybenetics platinum result here is a real bonus over the gold certification alone..
What are the drawbacks of the ASRock Steel Legend SL-750G (750W/80+ Gold with Cybenetics Platinum Real-World Performance/Fully Modular/Distinctive Design)?
It is a poor fit for not for builds needing more than 750w of headroom. an 850w or higher unit, several covered elsewhere on this site, is the right tier for more demanding gpu pairings..
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