Template:ATX size comparison

From PC Jargon Dictionary
ATX motherboard size comparison; rear is on left.
  FlexATX (229 × 191 mm)
  microATX (244 × 244 mm)
  Mini ATX (284 × 208 mm)
  ATX (305 × 244 mm)
  Extended ATX (EATX) (305 × 330 mm)
  WTX (form factor) (356 × 425 mm)