Be Quiet! System Power 10 Non-Modular Power Supply, 650W Power, 80 Plus Bronze Efficiency, 120mm Fan, DC-to-DC Technology, Active PFC, Sleeve Bearing Fan, 4-Pole Fan Motor, Black | BN328

Proven Reliability for Office and Gaming

The System Power 10 650W is the ultimate choice for those seeking a "set-and-forget" power solution that provides high-end stability. With 650W of continuous power and a strong 12V rail, it effortlessly supports modern mid-range graphics cards and multi-core processors. Whether you are building a home theater PC, a reliable workstation, or a gaming rig, this PSU ensures your components receive clean, consistent energy.

Advanced Voltage Regulation with DC-to-DC

Despite its entry-level positioning, the BN328 features high-tier internal architecture. The use of DC-to-DC technology allows for tight voltage regulation, ensuring that the 3.3V and 5V rails remain stable even if the 12V rail is under heavy load. This prevents system crashes and extends the lifespan of your sensitive hardware, such as SSDs and motherboards, providing a level of reliability usually reserved for more expensive units.

Exceptionally Quiet Operation

True to its name, be quiet! has optimized the System Power 10 for low noise. The integrated 120mm fan is powered by a 4-pole motor and a high-quality sleeve bearing, designed to minimize mechanical friction. The fan speed is thermally controlled, meaning it only spins as fast as necessary to keep the unit cool. This results in an optimal balance between effective cooling and a quiet workspace, even during intense gaming sessions.

Efficient and Certified Performance

The System Power 10 650W is 80 PLUS Bronze certified, achieving an efficiency rating of up to $89.1\%$. This high level of efficiency means less energy is wasted as heat, reducing your overall electricity costs and keeping the internal components cooler. With a comprehensive suite of safety protections (OCP, OVP, OPP, SCP, UVP, and OTP) and a sleek black design with flat cables, it provides a professional look and total peace of mind for any PC builder.