be quiet! Pure Power 13 M 1200W Review (2026)

1. Introduction2. Bundle & Cabling3. External4. Internal5. Testing Methodology and Results6. Closing Thoughts7. View All Pages

be quiet! have already been quite active in 2026 and today we check out another one of their power supplies – the Pure Power 13 M. be quiet! are releasing six models in this series across various capacities, and we have the flagship 1200W model on our test bench. These power supplies are fully modular and both 80 Plus and Cybenetics Gold rated.

These new Pure Power 13 M power units are ATX 3.1 and PCIe 5.1 compatible and offer semi-passive cooling. be quiet! are offering a 10-year warranty and while they aren't made in Germany, they claim ‘product conception, design and quality control in Germany'. I doubt they mean they are checking every unit made in China in their offices in Germany later, but it's a point be quiet! want to push. Make of it what you will.

Overall pricing certainly seems quite competitive based on the chart we were sent above.

Product Features (from be quiet!'s marketing materials):

Compatibility and Convenience

• ATX 3.1 form factor with up to 5 PCIe connectors for current- and next-gen GPUs.
• Full PCIe 5.1 and PCIe 6+2 compatibility with both cables in scope of delivery.
• Handles massive power excursions.

Exceptionally Quiet Operation

• Pure Power 13 M is a semi-passive PSU, only cooled actively when necessary, for a quieter operation.
• Exceptionally silent 120mm be quiet! fan is temperature-controlled to strike the best balance between effective cooling and quietness.
• Airflow-optimized fan blades reduce turbulence, allowing for best-of-class quiet functioning with excellent airflow.

Engineering and Efficiency

• 80 PLUS® Gold certification means very high operating efficiency for its class of up to 94.4%.
• Advanced stability and voltage regulation thanks to LLC technology.
• Up to 1200 Watts of continuous power.
• Modular cable management for maximum flexibility.

Outstanding Service and Support

• 10-year manufacturer's warranty.
• Product conception, design and quality control in Germany.

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