ASRock Steel Legend SL-1200G 1200W ATX 3.1 Gold PSU
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ASRock
90-UXS120-GFEAAA
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ASRock Steel Legend SL-1200G 1200W ATX 3.1 Gold Power Supply
1200W power • 80 PLUS Gold • ATX 3.1 and PCIe 5.1 ready • Fully modular flat cables
The ASRock Steel Legend SL-1200G is a high-power ATX power supply designed for modern gaming and performance PC builds. With 1200W output, ATX 3.1 support, PCIe 5.1 readiness, dual native 12V-2x6 connectors and fully modular flat cables, it is a strong choice for demanding single-GPU systems that need clean installation and reliable power headroom.
Key Features
1200W Power Headroom
Built for powerful gaming and workstation-class PCs where the CPU, graphics card and storage configuration need stable high-capacity power delivery.
ATX 3.1 and PCIe 5.1 Ready
Supports modern power supply standards and includes dual native PCIe 5.1 12V-2x6 connectors for compatible graphics cards.
Gold Efficiency with Cybenetics Rating
80 PLUS Gold efficiency and Cybenetics Platinum certification help reduce wasted energy and heat compared with lower-efficiency power supplies.
Quiet Cooling Design
The 135mm striped axial FDB fan and iCOOL intelligent fan control are designed to balance cooling performance and low noise operation.
Technical Specifications
| Model | ASRock Steel Legend SL-1200G |
| Manufacturer Part Number | 90-UXS120-GFEAAA |
| EAN | 4711581491052 |
| Total Power | 1200W |
| Form Factor | ATX |
| ATX Version | ATX 3.1 |
| Efficiency Certification | 80 PLUS Gold, Cybenetics Platinum |
| Noise Certification | Cybenetics LAMBDA A |
| Cable Design | Fully modular flat cables |
| Motherboard Connector | 1 x 24-pin |
| CPU Connectors | 1 x EPS 12V 4+4-pin, 1 x EPS 12V 8-pin |
| PCIe 5.1 Connectors | 2 x 12V-2x6 12+4-pin dual color connectors |
| PCIe Connectors | 2 x PCIe 6+2-pin, 1 x PCIe 8-pin |
| SATA Connectors | 9 |
| Peripheral Connectors | 3 x 4-pin peripheral |
| Fan | 135mm Striped Axial FDB Fan |
| iCOOL Mode | Yes, switch controlled |
| Capacitors | All Japanese capacitors |
| Protections | OCP, SCP, OVP, UVP, OTP, OPP |
| Dimensions | 150mm x 150mm x 86mm |
| Warranty | 10 years |
Frequently Asked Questions
Is this PSU suitable for modern high-end GPUs?
Yes. It includes two native PCIe 5.1 12V-2x6 connectors, making it suitable for compatible modern graphics cards that require this connector type.
Is it fully modular?
Yes. The fully modular flat cable design helps reduce cable clutter and makes installation cleaner inside the PC case.
Who should choose a 1200W PSU?
Choose 1200W for a high-end single-GPU gaming or creator PC where extra power headroom is important. For mainstream builds, a lower wattage PSU may be more cost-effective.
Singular Expert Insight
Choose the SL-1200G if you want a strong modern PSU for a high-end PC with ATX 3.1 support, dual 12V-2x6 GPU connectors and efficient Gold-class operation. If your build uses a mid-range graphics card, a 750W to 850W model will usually be the better value.
Buyer’s Guide
Buy it if: You are building a high-end gaming, creator or workstation PC and want 1200W power headroom with modern GPU connector support.
Skip it if: Your PC uses mainstream components and does not need this level of power capacity.
Also consider: A 1000W PSU for a powerful single-GPU build with slightly less headroom, or an 850W PSU for more typical gaming configurations.
Features - ASRock - 90-UXS120-GFEAAA
More Details
Product Code
04:581968
EAN Code
4711581491052
Manufacturer
ASRock