[ 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.
Next: The Passive Backplane Concept: The PC's Future?
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