A standard for motherboards used in PC/AT-compatible devices.

Baby AT is a redesigned standard based on specifications for motherboards installed in IBM PC/XT computers.

A particular feature is that it is not as wide as the AT specification. The ATX standard has currently become prevalent, and the Baby AT specification is mostly no longer used.

The power supply is larger than that of the ATX specification, 165 (W) x 150 (H) x 150 (D) mm.

At this firm, only the case size is applicable.