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Power Supply Unit be quiet! System Power 9 | 500W CM
The be quiet! System Power 9 | 500W CM is a reliable ATX power supply unit designed for price-conscious PC builders. Delivering 500 W of continuous power, it supports an AC input of 200–240 V at 50 Hz and includes a 20+4 pin ATX motherboard connector. The unit features a 120 mm active cooling fan, a black finish, and modular cable connectors for simplified installation.
The power supply provides stable 500 W output with up to 89% efficiency and holds an 80 PLUS Bronze certification for improved energy use. A 120 mm fan ensures active cooling while maintaining low noise levels. Compact design and included PCIe and SATA cables make the System Power 9 | 500W CM suitable for straightforward system builds and upgrades.
Install the PSU into an ATX-compatible case, secure it with the provided mounting points, and connect the 20+4 pin ATX cable to the motherboard. Attach PCIe and SATA connectors to graphics cards and storage devices as required. Ensure proper cable routing and airflow around the 120 mm fan, and connect the unit to an appropriate 200–240 V AC mains supply before powering on the system.
For stable operation, use this unit in systems with total component power draw below 500 W and ensure the case provides adequate ventilation. Periodically check cables and dust buildup around the fan to maintain efficiency and quiet operation.
The be quiet! System Power 9 | 500W CM features a temperature-controlled 120 mm fan that delivers whisper-quiet cooling. Enjoy noticeably lower noise levels during everyday use and under load, bringing the quiet reputation of be quiet! into an affordable, entry-level power supply.
This PSU carries an 80 PLUS Bronze certification, demonstrating efficient power delivery and reduced energy waste. With efficiency of up to 89%, it helps lower electricity consumption and heat output compared with non-certified units.
With 500 W of stable power, two independent 12 V rails and two PCIe connectors, the System Power 9 | 500W CM reliably supplies CPU and GPU demands and supports multi-GPU configurations where required.
DC-to-DC conversion ensures tight voltage regulation even under heavy cross-loading. This improves stability and compatibility with modern processors and graphics cards for dependable performance under varied workloads.
Equipped with high-quality black sleeved cables and a semi-modular design, this PSU lets you connect only the cables you need for a cleaner build and improved airflow while maintaining a premium look.
Built-in safety features — including OCP, OVP, OPP, OTP, UVP and SCP — provide extensive protection for components and ensure secure, reliable operation of your system.
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