- ATX: 305 mm × 244 mm (12? × 9,6?)
- ATX-EXtended: (30,8cm x 34cm ) SERVER Board Format
- Mini-ATX: 284 mm × 208 mm (11,2? × 8,2?)
- Micro-ATX: 244 mm × 244 mm (9,6? × 9,6?)
- Flex-ATX: 229 mm × 191 mm (9? × 7,5?),
- E-ATX-Format: 305 mm × 330 mm(12? × 13?)
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