The power supply is used to process the input voltage from the power grid, transform it and divide it into power supply branches. The output of the power supply is several voltage levels distributed through different connectors. Do you know what parameters to look for when choosing a PC power supply? We will advise you.
![FORTRON 300W ATX2.0, LowNoise - tichý, 120 mm, prodloužené kabely - 70cm, PFC/P4 [FSP300-60THN-P] - Source](https://image.alza.cz/products/UD953f/UD953f.jpg?width=190&height=190)
Computer power supplies are standardized according to the ATX format, created in 1995 by Intel as a standard arrangement of components in computer cases. At that time, it replaced the older standard AT format. In 2003, Intel tried to replace it with BTX, but manufacturers did not switch to that format and instead ATX was revised several times. The latest and current versions are ATX2.2, and smaller formats mATX and Mini ITX.
![FORTRON 650W [FSP650-80GLN] - PC Power Supply](https://image.alza.cz/products/UD959d/UD959d.jpg?width=190&height=190)
![FORTRON 500W ATX, aktivní PFC/P4, ATX 2.0 [FSP500-60GLC] - Source](https://image.alza.cz/products/UD959b/UD959b.jpg?width=190&height=190)
![Zdroj FORTRON 275W BTX, pasivni PFC/ P4 [FSP275-50BWN] - -](https://image.alza.cz/products/UD961k/UD961k.jpg?width=190&height=190)
![Zdroj FORTRON 300W ATX, Pasivní PFC/P4, 120 mm, [ATX-300PNF] - -](https://image.alza.cz/products/UD951c/UD951c.jpg?width=190&height=190)
