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Asrock steel legend sl-850g 850w atx 3.1 fully modular power supply 80 plus gold cybenetics platinum 12v-2x6 black
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Description
Item No.
bebad41e-7c77-4ca7-8728-7c7ea19184a1
ASRock Steel Legend SL-850G 850W ATX 3.1 Power Supply
850W80 Plus GoldCybenetics PlatinumFully Modular
The ASRock Steel Legend SL-850G is a fully modular ATX 3.1 power supply with 80 Plus Gold and Cybenetics Platinum efficiency, built for high-end gaming PCs and workstations running PCIe 5.1 graphics cards. It carries part number 90-UXS085-GFEAAA (EAN 4710483949050) and includes a native dual-color 12V-2x6 cable that delivers up to 600W directly to the GPU. Built with 100% Japanese capacitors a
Details
ASRock Steel Legend SL-850G 850W ATX 3.1 Power Supply
850W80 Plus GoldCybenetics PlatinumFully Modular
The ASRock Steel Legend SL-850G is a fully modular ATX 3.1 power supply with 80 Plus Gold and Cybenetics Platinum efficiency, built for high-end gaming PCs and workstations running PCIe 5.1 graphics cards. It carries part number 90-UXS085-GFEAAA (EAN 4710483949050) and includes a native dual-color 12V-2x6 cable that delivers up to 600W directly to the GPU. Built with 100% Japanese capacitors and a 135mm striped axial FDB fan with iCool intelligent control, it earns a Cybenetics Lambda A+ noise rating and is backed by a 10-year warranty. Typically in stock with fast delivery across Cyprus.
Compatibility & installation
Complies with ATX 3.1 and PCIe 5.1. The included native dual-color 12V-2x6 (12+4 pin) cable connects directly to current-generation GPUs — seat it fully until it clicks; older cards use the three 8-pin (6+2) PCIe leads. Two 8-pin (4+4) EPS connectors cover modern motherboards. Fits any case taking a standard ATX PSU at 150 mm depth (150 × 150 × 86 mm). Use only the ASRock-supplied modular cables — third-party cables can differ in pin configuration and damage your hardware even if the connector physically fits.
Best For
✓High-end gaming builds with RTX 50-series or Radeon GPUs
✓Efficiency seekers — Cybenetics Platinum rating
✓Quiet builds — FDB fan + iCool, Cybenetics Lambda A+
✓Creator and workstation systems needing stable 850W
✓Clean wiring — fully modular dual-color cables
✓Long-term reliability seekers (Japanese caps, 10-year warranty)
Key Features
ATX 3.1 & Native 12V-2x6
Ships with a native dual-color 12V-2x6 600W cable for PCIe 5.1 GPUs plus three 8-pin (6+2) PCIe connectors — no adapter needed.
Gold + Cybenetics Platinum
80 Plus Gold certified and independently rated Cybenetics Platinum for efficiency, meaning less wasted heat and lower running costs.
100% Japanese Capacitors
Built entirely with high-reliability Japanese capacitors plus a 5V BOOST function for stable, consistent power under sustained load.
FDB Fan + iCool Control
A 135mm striped axial FDB fan with iCool intelligent control earns a Cybenetics Lambda A+ noise rating and stays quiet at low loads.
Technical Specifications
| Identification | |
| Part Number | 90-UXS085-GFEAAA |
| EAN / GTIN | 4710483949050 |
| MPN | SL-850G |
| Brand / Series | ASRock / Steel Legend |
| Power | |
| Rated OuTPUt Power | 850W |
| Efficiency | 80 Plus Gold + Cybenetics Platinum |
| Noise Rating | Cybenetics Lambda A+ — low-noise certified |
| Extra | 5V BOOST function for stable rails |
| Connectors (fully modular) | |
| Motherboard | 1 × 24 pin ATX |
| CPU / EPS | 2 × 8-pin (4+4) |
| 12V-2x6 (12+4) | 1 — native 600W dual-color cable, no adapter |
| PCIe 8-pin (6+2) | 3 |
| SATA | 9 |
| Peripheral (Molex) | 3 |
| Design & Cooling | |
| Form Factor | ATX (ATX 3.1 / PCIe 5.1) |
| Cabling | Fully modular — dual-color cables |
| Cooling | 135mm striped axial FDB fan with iCool intelligent control |
| Capacitors | 100% Japanese electrolytic |
| Protection & Physical | |
| Protections | OCP, SCP, OVP, UVP, OTP, OPP |
| Dimensions (L×W×H) | 150 × 150 × 86 mm |
| Colour | Black |
| Warranty | 10 years |
Frequently Asked Questions
Singular Expert Insight
The Steel Legend SL-850G punches above its price: although rated 80 Plus Gold, it actually achieves Cybenetics Platinum efficiency and a Lambda A+ noise score, pairs 100% Japanese capacitors with a quality FDB fan, and is fully modular with a 10-year warranty — a feature set usually found on more expensive units. It is a clear step up from ASRock's value, non-modular Challenger line. If you do not need 850W, smaller Steel Legend models save money; if you want similar specs from a different brand, the Corsair RMx or Enermax Revolution III are worth comparing. Browse the full range of PC power supplies to compare efficiency and features.
Buyer's Guide
Buy it if
You want a fully modular 850W ATX 3.1 PSU with Cybenetics Platinum efficiency, Japanese caps, native 12V-2x6 and a 10-year warranty.
Skip it if
Your system draws well under ~550W — a smaller unit will run nearer its efficiency sweet spot for less.
Also consider
The ASRock Challenger CL-750G for a cheaper non-modular option, or the Corsair RM850x for a comparable premium unit.