Asrock SL-1200GW 1200W 80 PLUS GOLD ATX PSU

ASRock SL-1200GW | 1200W ATX 3.1 Gold PSU

The Asrock SL-1200GW 1200W ATX Power Supply Unit, 80 PLUS GOLD Certified, 135mm Striped Axial FDB Fan, High Efficiency PSU is built for high-end UK systems. It targets users needing stable power for modern GPUs and CPUs. This unit offers ATX 3.1 compliance and fully modular cabling for clean builds.

Slim Specs Table

ATX 3.1 & PCIe 5.1 Ready Compliance

This PSU supports the latest ATX 3.1 standards. It handles power excursions up to 200% effortlessly. You can connect next-gen graphics cards directly. The unit includes two native 12V-2×6 connectors. These feature a dual-color design for easy verification. ASRock Classic Green connectors show a secure fit instantly.

iCOOL Intelligent Fan Control Mode

The unit features a physical iCOOL switch. When ON, the fan stays off during low to medium loads. This reduces system noise significantly. It also improves energy efficiency in quiet environments. When OFF, the fan runs continuously. This provides consistent cooling for heavy workloads. You choose the balance between silence and performance.

Japanese Capacitors & Build Quality

ASRock uses 100% highly reliable Japanese capacitors rated at 105°C. This ensures long-term stability and durability. The 135mm Fluid Dynamic Bearing fan uses a herringbone structure. This design minimises noise and extends the fan’s lifespan. A full suite of protections guards your components. These include OCP, SCP, OVP, UVP, OTP, and OPP.

Certified Efficiency and Acoustics

The Steel Legend series holds 80 PLUS Gold certification. It also earns Cybenetics PLATINUM efficiency and LAMBDA A acoustic ratings. This confirms outstanding energy performance and ultra-quiet operation. The flat cable design aids airflow. It simplifies cable management in UK cases. The unit operates on 100-240V input. This makes it suitable for UK mains voltage.

Box contents

• ASRock Steel Legend SL-1200G Power Supply Unit – White
• AC Power Cord (Verify UK plug type)
• Modular Cables (See specs table for connector count)
• Mounting Screws
• User Manual

Check before you buy

• Confirm UK plug type: The input is 100-240V, but verify the included power cord has a UK 3-pin plug.
• Verify case clearance: The unit is 150mm deep; ensure your case supports this length.
• Check GPU compatibility: Confirm your graphics card uses 12V-2×6 or PCIe 6+2pin connectors.
• Review warranty region: Confirm the 10-year warranty applies in the UK.

Frequently Asked Questions

Q: Is the ASRock SL-1200GW compatible with UK mains voltage?

A: Yes, it supports 100-240V~, 50-60Hz input. However, confirm the included power cord has a UK 3-pin plug.

Q: Does this PSU support NVIDIA RTX 40 Series GPUs?

A: Yes, it includes two native 12V-2×6 connectors for PCIe 5.1 compatibility.

Q: Can I turn the fan off completely?

A: The iCOOL mode allows the fan to stay off under low loads. It activates automatically when load or temperature increases.

Q: Are the cables flat or braided?

A: The ASRock Steel Legend SL-1200G uses flat cables for easier routing.

Q: What is the warranty period?

A: ASRock offers a 10-year warranty on this unit.

The Consultant’s verdict & warranty

This PSU suits UK builders upgrading to ATX 3.1 GPUs or building high-wattage systems. It offers strong efficiency, quiet operation, and a 10-year warranty. The iCOOL mode adds flexibility for noise-sensitive environments. Covered by the standard Manufacturer Warranty.