Chieftec BDF-650C power supply unit 650 W 20+4 pin ATX PS/2 Black

The Chieftec BDF-650C 650 W is a modular power supply unit for desktop PCs that adopts CHIEFTEC's PROTON Series DC-to-DC technology. It delivers up to 650 W of continuous power with 80 PLUS Bronze efficiency and is designed to improve power stability, reduce energy consumption and extend component lifespan. The unit comes in black and includes a fully modular cabling system for simplified installation and better case airflow.

Advantages

The BDF-650C provides certified 80 PLUS Bronze efficiency (approximately 85% typical), an active cooling solution with a 140 mm fan for stable operating temperatures, and a 20+4 pin ATX connector to support standard motherboards. Fully modular cables reduce clutter and improve airflow, while DC-to-DC design enhances voltage regulation and overall reliability.

Suitable for

• Mainstream desktop builds and office PCs
• Home and multimedia systems
• Upgrades where efficient, compact power delivery is needed

Key specifications

• Total power: 650 W
• Efficiency: 85 % (80 PLUS Bronze)
• Motherboard connector: 20+4 pin ATX
• AC input voltage: 115 - 230 V
• Fan diameter: 140 mm
• Product colour: Black

How to use

Install the Chieftec BDF-650C into a compatible ATX case following standard PSU mounting procedures. Connect the 20+4 pin ATX cable to the motherboard and attach only the required modular cables to your components to minimize cable clutter. Ensure the AC input is within 115–230 V and that the unit has adequate ventilation. Power on the system and verify stable operation under typical load.

Recommendations

For reliable operation, place the PSU so the 140 mm fan has unobstructed airflow and use only the necessary modular cables. Verify component power requirements to ensure the 650 W capacity is sufficient for your configuration.