List of Computer Size Categories

This list of computer size categories attempts to list commonly used categories of computer by size, in descending order of size. Of course, one generation's "supercomputer" is the next generation's "mainframe", and a "PDA" does not have the same set of functions as a "laptop", but the list should have some recognition value. It also ranks some more obscure computer sizes.

Computer form factors
Listed by PCB size (mm)
  • WTX (356×425)
  • AT (350×305)
  • Baby-AT (330×216)
  • BTX (325×266)
  • ATX (305×244)
  • EATX (Extended) (305×330)
  • LPX (330×229)
  • microBTX (264×267)
  • NLX (254×228)
  • Ultra ATX (244×367)
  • microATX (244×244)
  • DTX (244×203)
  • FlexATX (229×191)
  • Mini-DTX (203×170)
  • EBX (203×146)
  • microATX (min.) (171×171)
  • Mini-ITX (170×170)
  • EPIC (Express) (165×115)
  • Mini ATX (150×150)
  • ESM (149×71)
  • Nano-ITX (120×120)
  • COM Express (125×95)
  • ESMexpress (125×95)
  • ETX/XTX (114×95)
  • Pico-ITX (100×72)
  • PC/104 (-Plus) (96×90)
  • ESMini (95×55)
  • Qseven (70×70)
  • mobile-ITX (60×60)
  • CoreExpress (58×65)

Read more about List Of Computer Size Categories:  Supercomputers, Mainframe Computers, Minicomputers, Microcomputers, Mobile Computers, Others, Distinctive Marks, Categories

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