The Proton series, launched in 2017, includes computer power supplies up to 1000 W with an efficiency of at least 85% and quality certificates "80 PLUS BRONZE". The combination of an affordable price and decent technical capabilities makes them the best choice for those users who are looking for a high-quality power source, but are not ready to overpay for elite models with a "gold" quality certificate, Japanese capacitors and complex backlighting. Such a power supply will power up a very serious working or gaming assembly with a powerful 8-core processor and a GeForce RTX 3700 caliber graphics card without any problems.


An important distinguishing feature of the Proton line is the modern circuitry based on DC-DC converters with a full range of available protections (SIP, UVP, OCP, OTP, AFC) and a main 12-volt line capable of transmitting the entire power of the unit.

During operation, Chieftec Proton power supplies guarantee low voltage surges and ripples, as well as a moderate noise level. In terms of silence and stability, Proton models evoke associations more with elite “gold” power supplies than with their “bronze” counterparts.

For more than 5 years of existence of this series, Chieftec has released only 7 power supplies ranging from 400 to 1000 watts. The older Proton models have the letter "C" in the name, which means a fully modular cable system. Otherwise, these are identical power supplies with a "bronze" quality certificate, intelligent circuitry and a powerful main power line.