| Computer form factors |
PCB Size (mm) |
| WTX | 356×425 |
| AT | 350×305 |
| Baby-AT | 330×216 |
| BTX | 325×266 |
| ATX | 305×244 |
| LPX | 330×229 |
| NLX | 254×228 |
| microATX | 244×244 |
| DTX | 244×203 |
| FlexATX | 229×191 |
| Mini-DTX | 203×170 |
| EBX | 203×146 |
| microATX (Min. This article compares the IBM compatible Personal computer Motherboard form factors – that is the different sizes and specific or de-facto standards of major system In the area of IBM compatible Personal computers the AT form factor referred to the dimensions and layout ( form factor) of the Motherboard for In the area of IBM compatible Personal computers the AT form factor referred to the dimensions and layout ( form factor) of the Motherboard for Enhancements Low-profile - With the push for ever-smaller systems a redesigned backplane that shaves inches off height requirements is a benefit to The ATX (for Advanced Technology Extended) form factor was created by Intel in 1995. LPX (Low Profile eXtension originally developed by Western Digital was a loosely defined Motherboard format ( Form factor) widely used in the 1990s NLX (New Low Profile Extended was a form factor proposed by Intel and developed jointly with IBM, DEC, and other vendors for low profile low cost mass-marketed microATX, also known as µATX (sometimes Transliterated as mATX or uATX on Online forums is a Small form factor standard The DTX Form factor was announced to be in development by AMD on January 10, 2007. FlexATX is a PC motherboard Form factor derived from ATX. The specification was released in 1999 by Intel as an addendum to the MicroATX The DTX Form factor was announced to be in development by AMD on January 10, 2007. Embedded Board eXpandable (EBX is a standardized computer form factor microATX, also known as µATX (sometimes Transliterated as mATX or uATX on Online forums is a Small form factor standard ) | 171×171 |
| Mini-ITX | 170×170 |
| EPIC (Express) | 165×115 |
| Nano-ITX | 120×120 |
| COM Express | 125×95 |
| ETX / XTX | 114×95 |
| Pico-ITX | 100×72 |
| PC/104(-Plus) | 96×90 |
| microETXexpress | |
| nanoETXexpress | |
| mobile-ITX | 75×45 |
Embedded Platform for Industrial Computing (EPIC) is a computer form factor standard put forth by a combined effort from WinSystems, VersaLogic, Octagon Systems, Micro/sys, and Ampro Corporations. Mini-ITX is a 17 x 17 cm (or 693 x 693 Inches) low-power Motherboard Form factor developed by VIA Technologies. Nano-ITX is a computer Motherboard form factor first proposed by VIA Technologies at CeBIT in March 2003, and implemented in late 2005 COM Express, a Computer-on-module (COM form factor is a highly integrated and compact PC that can be used in a design application much like an integrated circuit ETX, standing for Embedded Technology eXtended, is a highly integrated and compact (3 ETX, standing for Embedded Technology eXtended, is a highly integrated and compact (3 Pico-ITX is a PC Motherboard form factor announced by VIA Technologies in January 2007 and demonstrated later the same year at CeBIT. PC/104 (or PC104) is an Embedded computer standard controlled by the PC/104 Consortium which defines both a Form factor Mobile-ITX is the smallest x86 compliant Motherboard Form factor.
The consortium website [1]
The standard [2]