ATXeracompatible

ATXeracompatible is a term used in computer hardware discussions to indicate that a component, device, or configuration adheres to the ATX form factor’s specifications and will operate within an ATX-based system. It is an informal descriptor rather than an official certification, and its precise meaning can vary between manufacturers and communities.

Background: The ATX standard, introduced by Intel in 1995, defines the size and mounting of motherboards, the location and dimensions of the rear I/O panel, and the electrical interfaces for power delivery and expansion slots. Over time the form factor evolved through revisions and related form factors such as microATX and extended ATX (EATX). ATX-compatible components are designed to fit within the standard chassis layouts and use the standard power and connector arrangements.

Scope: A product described as ATXeracompatible is typically expected to fit ATX or microATX chassis, align with the standard mounting hole pattern, and use compatible power and I/O interfaces. This generally includes motherboards designed for ATX, power supplies with the ATX main power connector, and cases with standard ATX back panels. The term can also apply to expansion cards, cables, and front-panel connectors that follow ATX conventions.

Considerations: Users should verify the exact form factor (ATX, microATX, or EATX) and power requirements, ensure adequate clearance for high-profile CPU coolers and GPU lengths, and confirm that the I/O shield and expansion slots align with the chassis. Not all products labeled ATXeracompatible will support every revision or sub-form factor, and compatibility with non-ATX components is not guaranteed.

See also: ATX, microATX, EATX, PCI Express, power supply, motherboard.