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

Asrock SL-1200G | 1200W ATX 3.1 Gold PSU

The Asrock SL-1200G 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 running powerful GPUs and CPUs who need stable, efficient power. This unit offers ATX 3.1 and PCIe 5.1 readiness for next-gen hardware. It is ideal for demanding builds requiring reliability and quiet operation.

Slim Specifications

Asrock SL-1200G 1200W ATX Power Supply Unit, 80 PLUS GOLD Certified, 135mm Striped Axial FDB Fan, High Efficiency PSU

This section confirms the exact product focus. It ensures technical accuracy for your build. The unit meets ATX 3.1 power excursion standards. It handles transient spikes well. This is critical for modern high-end graphics cards.

ATX 3.1 and PCIe 5.1 Compliance

The PSU is ATX 3.1 and PCIe 5.1 ready. It supports a total power excursion of 200%. This means it can handle sudden power spikes from next-gen GPUs. You do not need to worry about system instability during peak loads. It is a forward-looking choice for new builds.

iCOOL Intelligent Fan Control

The 135mm Striped Axial FDB fan features iCOOL Mode. You can switch this mode on or off via a physical switch. When ON, the fan stays off during low to medium loads. This reduces noise and saves energy. When OFF, the fan runs continuously for consistent cooling under heavy loads.

High-Efficiency Components

The unit uses 100% Japanese capacitors rated for 105°C. This ensures long-term reliability and stable voltage output. It also carries Cybenetics Lambda A certification for low noise. The 80 PLUS Gold rating guarantees efficient power conversion. This reduces heat and electricity waste.

Fully Modular Cable Design

The fully modular design lets you connect only the cables you need. This improves airflow and reduces clutter inside your case. The cables are flat for easier routing. The native 12V-2×6 connector features a dual-colour design. Green connectors show a secure connection, which aids installation.

What is in the box

• ASRock Steel Legend SL-1200G Power Supply Unit
• AC Power Cord
• Modular Cables (as per specification)
• Mounting Screws
• User Manual

Check before you buy

• Confirm your case supports ATX PSUs with 150mm x 150mm x 86mm dimensions.
• Verify your wall socket uses a standard UK 3-pin plug; the input is 100-240V.
• Check your motherboard has sufficient EPS 12V CPU connectors (1x 4+4pin, 1x 8pin).
• Ensure your GPU requires the native 12V-2×6 connector or use included PCIe 6+2pin cables.

Questions and answers

Buying advice

This unit suits UK builders upgrading to ATX 3.1 hardware or high-wattage systems. It delivers stable power with quiet cooling and a long warranty. The 10-year coverage offers peace of mind for long-term use. Covered by the applicable manufacturer warranty.