Be Quiet! System Power 9 500W CM Semi-Modular Power Supply

The Be Quiet! System Power 9 500W CM delivers reliable power for cost-effective PC builds. This semi-modular ATX power supply combines 80+ Bronze efficiency with quiet operation, making it suitable for gaming systems and workstations that require stable power delivery without excessive noise.

Efficient Power Delivery with 80+ Bronze Certification

Achieving up to 89% efficiency with 80 PLUS Bronze certification, this PSU minimizes wasted energy and reduces heat output. The dual independent 12V rails provide stable power distribution to your CPU and GPU, while DC-to-DC conversion ensures tight voltage regulation even under heavy cross-loading conditions. This technology makes the power supply compatible with next-generation processors and graphics cards.

Quiet Operation for Noise-Sensitive Builds

The temperature-controlled 120mm sleeve bearing fan adjusts speed based on system load, operating at just 9.7 dB(A) at 20% load and 11.5 dB(A) at 50% load. This results in near-silent operation during typical computing tasks, only ramping up to 24.4 dB(A) under maximum load conditions.

Semi-Modular Cable Management

The semi-modular design features high-quality black sleeved cables that improve airflow and aesthetics. Essential cables remain permanently attached while optional cables can be connected as needed. The all-in-one cable includes S-ATA, HDD, and FDD connectors for simplified cable routing.

Multi-GPU Support and Connectivity

Equipped with two PCI Express 6+2-pin connectors, this power supply supports multi-GPU configurations. Additional connectors include 1x ATX motherboard (20+4-pin), 1x P4+4 CPU connector, 6x SATA 15-pin connectors, and 2x PATA 4-pin connectors, providing comprehensive connectivity for modern PC components.

Comprehensive Protection Features

A complete suite of safety features protects your components: Over Current Protection (OCP), Over Voltage Protection (OVP), Over Power Protection (OPP), Over Temperature Protection (OTP), Under Voltage Protection (UVP), and Short Circuit Protection (SCP). The PSU meets Intel C6/C7, ErP, and Energy Star 6.1 guidelines, with a standby drain of less than 0.15 watts.

Technical Specifications

This ATX 12V v2.51 compliant power supply operates on AC 200-240V input with active PFC. Measuring 140 x 150 x 86 mm and weighing 1.56 kg, it fits standard ATX cases. The unit is backed by a 3-year manufacturer's warranty and features an MTBF rating of 100,000 hours for long-term reliability.

Specification

• Form Factor: ATX
• Series: Be Quiet! System Power 9
• Wattage: 500 W
• Modular: Semi Modular
• Compatibility: ATX 12V v2.51
• #Hide#Wattage Range: 450 - 560W
• Connectors: "1 x ATX-Motherboard (20+4-pin)
  1 x P4+4 (CPU)
  2 x PCI-E 6+2-pin (GPU)
  2 x PATA 4-pin
  6 x SATA 15-pin (HDD, Drives)
  1 x FDD"
• Rail Design: Dual +12V
• AC Input: AC200-240 V
• PFC: Active PFC
• Fan Type: High-quality 120mm fan
  Sleeve Bearing
• Fan Bearing: Sleeve Bearing
• Noise: dB(A) at 20% load: 9.7
  dB(A) at 50% load: 11.5
  dB(A) at 100% load: 24.4
• Max Certification: Bronze
• Efficiency: 80+ Bronze
  Up to 88%
• MTBF: "100,000 hours"
• Protection: Over current
  Over voltage
  Under voltage
  Short circuit
  Over temperature
  Over power
• Additional Features: See Overview
• Weight/Dimensions: 1.56 kg
  140 x 150 x 86 mm
• Package Weight: 2.4000 kg
• Warranty: 3 Years