ATX
computer motherboard and power supply configuration specification
ATX (Advanced Technology Extended) is a motherboard and power supply form factor and configuration specification developed by Intel. It aimed to improve on previous de facto standards such as the AT design. Originally released in July 1995, it was the first major change in desktop computer enclosure, motherboard and power supply design in many years, improving standardization and interchangeability of parts. ATX as a motherboard standard defines the dimensions of the board, the mounting points to connect with the computer case, the input/output (I/O) connector panel, expansion slot placement, and power supply connectors. ATX as a power supply form factor defines the dimensions, electrical current, and cables of a desktop power supply, designed specifically to be compatible with ATX and similar motherboards.
ATX is a commonly used motherboard and power supply hardware form factor for desktop computers. The ATX form factor defined a general mounting point placement and I/O panel size that smaller motherboards share (such as microATX, FlexATX, and Mini-ITX), making them backwards compatible in many computer cases.
Overview
As of 2012, ATX is the most common motherboard design. Other standards for smaller boards (including microATX, FlexATX, nano-ITX, and mini-ITX) keep the basic rear layout but reduce the size of the board and the number of expansion slots. Dimensions of a full-size ATX board are 12 × 9.6 in (305 × 244 mm) which means microATX boards fit in many ATX chassis.
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This entry incorporates text from “ATX” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.