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How can I tell what form factor my computer is?

'Form factor' is a term used to describe the different sizes of a computer's outer casing. There are usually four form factors available, and your computer will fit the description of one of them:

  • Tower (MT or SMT) - Stands vertically, usually on the floor or a desk
  • Desktop (SD or DT) - Sits horizontally on desk, about 3 inches wider than a piece of A4 paper
  • Small Form Factor (SFF or SFX) - About the width of a piece of A4 paper in landscape form
  • Ultra-Small Form Factor (USFF) - Significantly smaller than SFF

The form factor of a computer is dependent on the size of its motherboard, which is also known as form factor. Different form factors suit different purposes. If you are still not sure which of the above form factors your PC fits into, contact us and we will be able to help you work it out.


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