The ATX power supply form factor is a standard for the shape, size, and connector layout of power supplies used in desktop computers. Introduced in 1995 by Intel, it has become the most widely used power supply form factor in the industry. The ATX form factor was designed to replace the earlier AT form factor, which had several limitations, including a larger size and a less efficient connector layout.
History of ATX Power Supply
The ATX power supply form factor was developed in response to the growing need for more efficient and compact power supplies. The AT form factor, which was introduced in the 1980s, had become outdated and was no longer able to meet the power requirements of modern computers. The ATX form factor was designed to be more compact, with a smaller size and a more efficient connector layout. This allowed for better airflow and easier installation in desktop computers.
Key Features of ATX Power Supply
The ATX power supply form factor has several key features that have contributed to its widespread adoption. These include a standard size of 150mm wide, 86mm tall, and 140mm deep, as well as a standard connector layout that includes a 24-pin main power connector, an 8-pin CPU power connector, and a 6-pin PCIe power connector. The ATX form factor also includes a number of other features, such as a standard mounting system and a range of optional connectors for supporting additional components.
Benefits of ATX Power Supply
The ATX power supply form factor has several benefits that have made it the industry standard. These include its compact size, which allows for better airflow and easier installation in desktop computers. The standard connector layout also makes it easy to install and replace power supplies, and the wide range of optional connectors provides support for a wide range of components. Additionally, the ATX form factor has been widely adopted by power supply manufacturers, which has driven down costs and made high-quality power supplies more affordable.
ATX Power Supply Variants
Over the years, several variants of the ATX power supply form factor have been developed. These include the Micro-ATX and Mini-ITX form factors, which are smaller versions of the ATX form factor, as well as the Flex-ATX and SFX form factors, which are designed for use in small form factor systems. These variants have been developed to support a range of different applications, from compact desktop computers to high-performance gaming systems.
Conclusion
In conclusion, the ATX power supply form factor is a widely used standard for power supplies in desktop computers. Its compact size, standard connector layout, and range of optional connectors have made it the industry standard, and its widespread adoption has driven down costs and made high-quality power supplies more affordable. Whether you're building a compact desktop computer or a high-performance gaming system, the ATX power supply form factor is an excellent choice.
