| 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 |
WTX (for Workstation Technology Extended) was a motherboard form factor specification introduced by Intel at the IDF in September 1998, for its use at high-end, multiprocessor, multiple-hard-disks server and workstations. Mini-ITX is a 17 x 17 cm (or 693 x 693 Inches) low-power Motherboard Form factor developed by VIA Technologies. 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 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. A motherboard is the central or primary Printed circuit board (PCB making up a complex electronic system such as a modern Computer or Laptop A server is a Computer dedicated to providing one or more services over a computer network typically through a request-response routine A workstation, such as a Unix workstation, RISC workstation or Engineering workstation, is a high-end Microcomputer The specification had support from major OEMs (Compaq, Dell, Fujitsu, Gateway, Hewlett-Packard, IBM, Intergraph, NEC, Siemens Nixdorf, and UMAX) and motherboard manufacturers (Acer, Asus, Supermicro and Tyan) and was updated (1. 1) in February 1999. As of 2008 the specification has been discontinued and the URL www. wtx. org no longer hosts a website and has not been owned by Intel since at least 2004.
This form factor was geared specifically towards the needs of high-end systems, and included specifications for a WTX power supply unit (PSU) using two WTX-specific 24-pin and 22-pin molex connectors. Power supply is a reference to a source of Electrical power. A device or system that supplies Electrical or other types of Energy to an output load Molex ( is a manufacturer of electronic components including electrical and fiber optic interconnection products and systems switches integrated products and application
The WTX specification was created to standardize a new motherboard and chassis form factor, fix the relative processor location, and allow for high volume airflow through a portion of the chassis where the processors are positioned. A motherboard is the central or primary Printed circuit board (PCB making up a complex electronic system such as a modern Computer or Laptop This allowed for standard form factor motherboards and chassis to be used to integrate processors with more demanding thermal management requirements.
Bigger than ATX, maximum WTX motherboard size was 14"x16. The ATX (for Advanced Technology Extended) form factor was created by Intel in 1995. 75" (356mm x 425mm). This was intended to provide more room in order to accommodate higher numbers of integrated components.
WTX computer cases were backwards compatible with ATX motherboards (but not vice versa), and sometimes come equipped with ATX power supplies.
See also
- eATX: a version of ATX which has a width of 12 inches (304. The ATX (for Advanced Technology Extended) form factor was created by Intel in 1995. 8 mm) and a height of 13 inches (330. 2 mm).
External links
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