be quiet! Pure Power 13 M 550W 80+ Gold Modular Power Supply

The be quiet! Pure Power 13 M 550W delivers reliable, efficient power for modern PC builds. This fully modular ATX 3.1 power supply supports both current and next-generation graphics cards with PCIe 5.1 compatibility, making it a future-proof choice for gaming and workstation systems.

High Efficiency and Silent Operation

Certified 80 PLUS Gold with up to 93.8% efficiency, this PSU minimizes energy waste and heat generation. The 120mm be quiet! silence-optimized fan features semi-passive cooling, remaining completely silent during low to medium loads (up to 50%). Even at full load, noise levels stay remarkably low at just 20.8 dB(A).

ATX 3.1 and PCIe 5.1 Ready

Fully ATX 3.1 compliant with PCIe 5.1 support, this power supply includes one 12V-2x6 connector capable of delivering 300W to modern GPUs. Two additional PCIe 6+2-pin connectors ensure compatibility with a wide range of graphics cards. The single robust 12V rail provides 45.8A output with advanced LLC technology for exceptional voltage stability.

Fully Modular Cable Management

The fully modular design allows you to connect only the cables you need, improving airflow and simplifying cable management. All cables are flat and sleeved with a maximum length of 95cm. The connector set includes: 1x 24-pin ATX, 1x 4+4-pin EPS CPU, 1x PCIe 5.1 12V-2x6, 2x PCIe 6+2-pin, 5x SATA, and 2x Molex connectors.

Technical Specifications

Power Output: 550W continuous (600W peak)
Efficiency Rating: 80+ Gold (up to 93.8%)
Voltage Rails: Single 12V rail, 45.8A
Form Factor: ATX 3.1
Cooling: 120mm rifle bearing fan, semi-passive operation
Noise Levels: 14.8 dB(A) at 20-50% load, 20.8 dB(A) at 100% load
Input: 100-240V AC, 50/60Hz
Dimensions: 160 x 150 x 86 mm
Warranty: 10-year manufacturer's warranty

Reliable Protection and Build Quality

Built with a comprehensive suite of safety protections and backed by a 10-year manufacturer's warranty, the Pure Power 13 M 550W provides long-term reliability. The robust 12V rail design and LLC voltage regulation technology ensure stable power delivery even under demanding workloads.

Key Features
80 PLUS® Gold efficiency (up to 93.8%).
ATX 3.1 PSU with full support for PCIe 5.1 GPUs and GPUs with 6+2 pin connectors.
Exceptionally silent 120mm be quiet! fan with semi-passive operation.
Advanced stability and voltage regulation thanks to LLC technology.
One high-performance 12V rail.
One PCIe 5.1 12V-2x6 (300W) and 2 PCIe 6+2 connectors for modern GPUs.
10-year manufacturer's warranty.

Full Specification

Model:
Pure Power 13 M 550W 80+ Gold Modular Power Supply

Output Power:
550W continuous, 600W peak

Efficiency:
80+ Gold (up to 93.8% efficiency)

Voltage Rails:
Single 12V rail, 45.8A output

ATX Form Factor:
ATX 3.1

Connectors:
1 x 24-pin ATX
1 x 4+4-pin CPU +12V (EPS)
1 x PCIe 5.1 12V-2x6 (300W)
2 x PCIe 6+2-pin
5 x SATA
2 x Molex (PATA)

Fan:
120mm be quiet! silence-optimised fan, rifle bearing

Cooling:
Semi-passive, temperature-controlled operation

Fan Noise:
14.8 dB(A) at 20–50% load
20.8 dB(A) at 100% load

Power Input:
100–240V AC, 50/60Hz

Power Output:
+3.3V: 20A
+5V: 20A
+12V: 45.8A (550W max combined)
-12V: 0.3A
+5Vsb: 3A

Cable Set:
Fully modular flat and sleeved cables
Max length: 95cm

Special Features:
Future-proof ATX 3.1 and PCIe 5.1 support
Semi-passive silent operation
Robust 12V rail design
Full suite of safety protections

Warranty:
10-year manufacturer's warranty

Dimensions (L x W x H):
160 x 150 x 86 mm

• Wattage: 550W
• Size/Version: ATX 3.1
• Modular: Fully
• SATA Connections: 5
• Certification: Gold
• Colour: Black