Form factor

The form factor sets the standard for the size of a motherboard and the design and placement of holes, slots and ports. His case must format the card you choose. Most motherboards today are set by the ATX form factor. The home theater enthusiasts looking to consider a PC for the living room to a smaller MicroATX board. These cards use the general ATX design, but also fewer slots I / O, so that an adjustment board shorter than in a small box.