Confused between EATX and ATX motherboards? Learn the key differences in size, features, and compatibility to choose the ...

The typical size of an ATX motherboard is about 9.6" x 12". EATX: 13" x 12" -- A fully-featured ATX motherboard with an extended width of 13" and height of 12" instead of ATX's maximum of 12" x 9. ...