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Product Code: PSEL-045
MPN #: BN301
A noisy, unstable power supply can crash your build and waste electricity, leaving you frustrated and out of pocket. The be quiet! System Power 9, 500W CM, 200 - 240 V, 50 Hz, 4 A, Power Supply is a reliable 500-watt ATX unit that delivers stable power while keeping noise to a minimum, perfect for budget-friendly PCs that need dependable performance.
Many first-time builders worry about overheating, power spikes, and excessive fan noise, especially when trying to stay within a tight budget. Unstable power can shorten component life and cause unexpected shutdowns, which defeats the purpose of a value-oriented system. This power supply solves those issues by offering 80 PLUS Bronze efficiency and a semi-modular design that reduces clutter and improves airflow, giving you a calm, efficient foundation for any mid-range PC.
A reliable power source makes your system run smoother.
This unit is ideal for entry-level to mid-range gaming rigs, home office PCs, and compact workstations that require up to 500 W of clean, quiet power. Its ATX form factor fits standard cases, while the semi-modular layout makes cable management easy, helping you build a tidy system that stays cool during long sessions.
| Interfaces / Ports | |
| SATA Connectors | 6 |
| CPU Connectors | 1 x 4+4-pin EPS |
| PCI Connectors | 2 x 6+2-pin PCIe |
| Motherboard Connectors | 1 x 20+4-pin ATX |
| Molex Connectors | 2 |
| Compliance | |
| Standards | 80 PLUS Bronze Certified |
| Electrical | |
| Power | 500 W |
| Physical | |
| Form Factor | ATX Power Supply Unit |
| Case Colour | Black |
| Width | 150 mm |
| Depth | 140 mm |
| Height | 86 mm |
| Warranty | |
| Warranty | 3 Years |
| Key Features | |
| Main Colour | Black |
| Modular Cables | Semi-Modular |
| 80Plus Rated | 80 Plus Bronze |
| PSU Form Factor | ATX |
| PCIe Connectors | 2 |
| Motherboard (EPS) Power Connectors | 4+4-Pin |
| PCIe Pin Type | 6+2-Pin |
| PSU Depth | 140 mm |
| CPU Power Pins (male) | 8 |
| PCIe Power Pins (male) | 16 |
| Create Your Own Gaming PC (CCL) | No |
| Item Details | |
| Manufacturer | Be Quiet! |
| Manufacturer Code | BN301 |
| Condition | New |
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We are retiring PICOPC Products MNHO-073, MNHO-048 and MNHO-043 and they have reached EOL (End Of Life) as we are introducing new products with better technology. We would recommend you to look into MNHO-095. For Untangle, pfSense, OPNsense, Windows 11, Proxmox VE etc. we recommend MNHO-095 whereas for Sophos, Kerio Control and Endian, we would recommend MNHO-069. (A complete list of supported OS can be found in each product's listing)