Equipment that is smaller than other products in the same category. For example, a mini PC is a small-form factor (SFF) device. See form factor and mini PC. THIS DEFINITION IS FOR PERSONAL USE ONLY.
The physical size of a device as measured by outside dimensions. With regard to a disk drive, the form factor is the diameter of the platters, such as 2.5", 3.5" and 5.25", not size in terms of ...