Comparison of Form Factors

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[ The PC Guide | Systems and Components Reference Guide | Motherboard and System Devices | The Motherboard | Motherboard Form Factors ]

Comparison of Form Factors

This table is a summary comparison of the sizes of the various motherboard form factors, and compatibility factors.

Style	Width	Depth	Where Found	Match to Case and Power Supply
Full AT	12"	11-13"	Very Old PCs	Full AT, Full Tower
Baby AT	8.5"	10-13"	Older PCs	All but Slimline, ATX
ATX	12"	9.6"	Newer PCs	ATX
Mini ATX	11.2"	8.2"	Newer PCs	ATX
LPX	9"	11-13"	Older Retail PCs	Slimline
Mini LPX	8-9"	10-11"	Older Retail PCs	Slimline
NLX	8-9"	10-13.6"	Newer Retail PCs	Slimline

Note: Some ATX cases will accept baby AT form factor motherboards.

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