be quiet! Pure Power 13 M 1200W ATX PSU Black

be quiet! Pure Power 13 M | 1200W ATX 3.1 PSU

The be quiet! Pure Power 13 M | 1200W power supply unit 20+4 pin ATX ATX Black is engineered for high-end UK builds requiring stable power and quiet operation. This unit targets enthusiasts using modern GPUs and CPUs, offering semi-passive cooling and full ATX 3.1 compliance. Because it delivers 1200W of continuous power, it handles demanding workloads efficiently. Also, its fully modular cabling simplifies cable management in any case.

be quiet! Pure Power 13 M | 1200W power supply unit 20+4 pin ATX ATX Black

This PSU provides reliable voltage regulation for complex systems. The 1200W total power supports overclocked components without strain. In practice, the semi-passive fan curve remains silent during low loads.

Slim Specifications

ATX 3.1 and PCIe 5.1 Compatibility

This unit is fully ATX 3.1 compliant, meaning it handles high power transients typical of modern graphics cards. It includes a dedicated 12-pin PCIe connector alongside standard 6+2 pin cables. So, it supports both current-gen and next-gen GPUs out of the box. You do not need adapters for high-wattage cards.

Silent Operation with Semi-Passive Cooling

The 12 cm fan uses a Rifle bearing for low noise and long life. At low loads, the fan stops completely for zero noise. Once heat rises, it spins up to 2700 RPM to maintain stability. The noise level is rated at 32.3 dB, which is very quiet for a high-wattage unit.

High Efficiency and Stable Power

With 80 PLUS Gold certification, this PSU wastes less energy as heat. The active PFC (0.97 power factor) ensures clean power draw from your UK mains. The single +12V rail provides 100 A, delivering stable current to power-hungry components. This design prevents voltage drops during peak usage.

Fully Modular Cable Management

The fully modular design lets you connect only the cables you need. This reduces clutter and improves airflow inside your case. The included cables offer flexible lengths for various chassis sizes. For example, the motherboard power cable is 55 cm, suitable for most tower cases.

Comprehensive Protection Features

This PSU includes multiple safety circuits to protect your investment. It guards against over current, over power, over voltage, and overheating. Short circuit and surge protection are also built-in. These features help ensure system longevity and component safety.

Package contents

• be quiet! Pure Power 13 M 1200W PSU
• AC power cable
• CPU power cables (4+4 pin)
• PCIe power cables (6+2 pin and 12-pin)
• Peripheral (Molex) power cables
• SATA power cables
• Mounting screws
• Cable ties
• User manual

Things to check first

• Confirm your case supports ATX PSU form factor (150 x 160 x 86 mm).
• Verify your motherboard has a 20+4 pin ATX connector.
• Check your GPU requires PCIe 6+2 pin or 12-pin connectors.
• Confirm UK plug type is required; the input voltage supports 110-240V.

Frequently Asked Questions

Final thoughts

This PSU is ideal for UK builders assembling high-end gaming or workstation PCs needing 1200W of stable, quiet power. It suits those prioritising silence, efficiency, and ATX 3.1 compliance for modern hardware. Covered by the applicable manufacturer warranty.