ASRock SL-850G 850W PSU 80+ Gold ATX 3.1 Steel Legend
ASRock Steel Legend SL-850G 850W ATX Power Supply
80 PLUS Gold | ATX 3.1 | High-End Efficiency & Ultra-Quiet PSU
The ASRock Steel Legend SL-850G is a premium 850W power supply designed for high-performance gaming PCs and demanding workstation builds. Delivering outstanding efficiency, silent operation, and next-generation compatibility, it provides stable and reliable power for modern high-end systems.
Key Features & Benefits
✔ 850W continuous output for high-performance gaming and workstation systems
✔ 80 PLUS Gold certified with Cybenetics Platinum efficiency rating
✔ ATX 3.1 compliant for next-generation hardware support
✔ Native PCIe 12V-2x6 connector for modern GPU compatibility
✔ Cybenetics Lambda A certified for ultra-quiet operation
✔ 135mm Fluid Dynamic Bearing fan for low noise and long lifespan
✔ iCOOL intelligent fan control for silent low-load operation
✔ Premium Japanese 105°C capacitors for long-term durability
✔ Flat cable design for improved airflow and clean installations
✔ Full protection suite: OCP, OVP, UVP, SCP, OTP, OPP
✔ Dual-colour connectors for secure installation verification
✔ 10-year manufacturer warranty for complete peace of mind
Advanced Features
Silent Smart Cooling (iCOOL Mode)
Automatically stops the fan during low to medium loads for near-silent operation, activating only when thermal demand increases.
Next-Generation Ready Platform
Built to support ATX 3.1 and PCIe 5.1 standards, ensuring compatibility with modern GPUs and future upgrades.
Premium Component Quality
Uses 105°C Japanese capacitors and high-grade internal components for long-term stability and reliability under heavy loads.
Ultra-Low Noise Performance
Cybenetics Lambda A certification ensures industry-leading acoustic performance for quiet computing environments.
Technical Specifications
Model: ASRock Steel Legend SL-850G
Power Output: 850W
Efficiency Rating: 80 PLUS Gold
Cybenetics Rating: ETA Platinum / Lambda A+
ATX Standard: ATX 3.1
Input Voltage: 100–240V~, 50–60Hz
12V Rail Output: 70.9A
Fan: 135mm Fluid Dynamic Bearing Fan
Dimensions: 150 x 150 x 86 mm
Connectors:
24-pin ATX motherboard: 1
EPS CPU 4+4 pin: 2
PCIe 12V-2x6 (GPU): 1
PCIe 6+2 pin: 3
SATA: 9
Peripheral: 3
Cable Type: Flat
Capacitors: 100% Japanese (105°C rated)
Protection Features: OCP, OVP, UVP, SCP, OTP, OPP
Power Excursion: Up to 200%
Warranty: 10 Years
Why Choose the ASRock Steel Legend SL-850G?
The SL-850G is engineered for users who demand high wattage capacity, ultra-quiet operation, and future-proof connectivity. It is ideal for high-end gaming rigs and professional systems requiring stable power delivery under heavy workloads.
With ATX 3.1 compliance, PCIe 5.1 support, Cybenetics-certified efficiency, and premium Japanese components, it delivers long-term reliability, excellent thermal control, and exceptional performance for demanding modern builds.