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ASRock Steel Legend SL-750G vs Corsair CX550M: Comparison
ASRock Steel Legend SL-750G and Corsair CX550M separate most on warranty: ASRock Steel Legend SL-750G at 10 years, Corsair CX550M at 5 years, 50% in favour of ASRock Steel Legend SL-750G. Hold-Up Time splits them by another 32%, again favouring ASRock Steel Legend SL-750G. They match on 7 other specifications, including form factor, single +12v rail and sleeved cables. On price, Corsair CX550M sits at $54.99 against $69.99 for ASRock Steel Legend SL-750G.
Specs
| Specification |  |  |
|---|---|---|
| Brand | ASRock | Corsair |
| Wattage | 750 W | 550 W-27% |
| 80 PLUS Rating | Gold | Bronze |
| ATX Standard | ATX 3.1 | ATX 2.x |
| Form Factor | ATX | ATX |
| +12V Rail Amperage | 62.5 A | 45.8 A |
| Single +12V Rail | Yes | Yes |
| Cybenetics Efficiency | Platinum | Silver |
| Cybenetics Noise | A+ | A |
| 12V-2x6 Connectors | 1 | 0 |
| Hold-Up Time | 16.3 ms | 11.1 ms-32% |
| Zero-RPM Mode | Yes | No |
| Sleeved Cables | No | No |
| Measured Avg Efficiency | 90.08 % | 85.91 % |
| PCIe 8-pin Connectors | 2 | 2 |
| Measured Average Noise | 18.76 dBA | 20.2 dBA |
| Connector Count | 1x 24-pin ATX, 2x EPS 4+4, 1x 12V-2x6, 2x PCIe 6+2-pin, 9x SATA, 3x Molex | 1x 24-pin ATX (fixed), 1x EPS 4+4 (fixed), 2x PCIe 6+2-pin, 6x SATA, 4x Molex |
| Fan Size | 135 mm | 120 mm |
| Fan Model / Bearing | 135mm striped axial fluid dynamic bearing (RL4ZS1352512HH) | 120mm rifle bearing (HA1225H12F-Z) |
| OEM / Platform | HEC | CWT |
| Japanese Capacitors | Yes | Yes |
| EPS 8-pin Connectors | 2 | 1 |
| SATA Connectors | 9 | 6 |
| Molex Connectors | 3 | 4 |
| Length | 150 mm | 140 mm |
| Colour | Black | Black |
| Fan Bearing | Fluid Dynamic | Rifle |
| MTBF | 100000 hours | 100000 hours |
| Modularity | Fully Modular | Semi-Modular |
| Protections | OCP, SCP, OVP, UVP, OTP, OPP | OCP, OVP, SCP, OTP |
| Warranty | 10 years | 5 years-50% |
| Model | Steel Legend SL-750G | CX550M |
| Typical Price | $69.99 | $54.99 |
| Source URL | https://www.asrock.com/Power-Supply/SteelLegend/SL-750G/ | https://www.corsair.com/us/en/p/psu/cp-9020220-na/cx-m-series-cx550m-550-watt-80-plus-bronze-semi-modular-atx-psu-cp-9020220-na |
Price comparison
| Retailer | ASRock Steel Legend SL-750G | Corsair CX550M |
|---|---|---|
| Consumercarts listing | $69.99 View on Consumercarts listing | |
| Amazon | $54.99 View on Amazon | |
| Newegg | View on Newegg |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
Corsair CX550M
6.9 / 10 Expert Rating
A safe, unglamorous budget Bronze pick for entry-level gaming PCs that don't need Gold efficiency or full modularity.
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