PSUs be quiet! series System Power (available)
prices on 3 modelsBe quiet System Power Series
The combination of power, noiselessness for its class and efficiency inherent in System Power 9 with two 12V lines and stable voltages will allow you to assemble an inexpensive, reliable and at the same time quiet working or gaming system that will not distract even under heavy load.
The advantages of the new products include low cost, 80 Plus Bronze certificate and circuitry, which is built on DC-DC converters and guarantees extremely stable parameters of electric current. In turn, their efficiency reaches 89%, which is confirmed by 80+ Bronze quality certificates.
A proprietary 120 mm fan is responsible for active cooling, the speed of which directly depends on the load on the PC hardware. Due to this, the PSUs of the System Power series have a low noise level. Of course, they cannot be called completely silent, like Dark Power and Straight Power, but the indicator of the maximum level of noise produced leaves behind most of the entry-level and mid-level power supplies.
The most current model in this series is the System Power 9 power supply, which was first shown to the public in the summer of 2018. This is an inexpensive "bronze" model with fixed fasteners, circuitry on DC-DC converters, a quiet but not silent cooling system and all the necessary protection measures.
The decisive factor in the success of System Power 9 was the democratic price ― for the 600-watt version, most stores ask for a little more than $ 50, and this is very close to the front line, behind which numerous low-cost-level power supplies are fighting.
In 2019, the System Power 9 model with the prefix "CM" was released, which, among other things, boasts a half-modular wiring. The main wires are non-removable, the rest of the wiring can be removed as unnecessary. The new units differ from the original models by a lower level of noise, which was achieved thanks to the modernization of the 120 mm fan.