From Wikipedia, the free encyclopedia
Jump to: navigation, search
WikiProject Computing / Hardware (Rated Stub-class, Low-importance)
WikiProject icon This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
Stub-Class article Stub  This article has been rated as Stub-Class on the project's quality scale.
 Low  This article has been rated as Low-importance on the project's importance scale.
Taskforce icon
This article is supported by Computer hardware task force.

Ultra ATX[edit]

The link to the Ultra ATX pages suggest the size is:

"Using the same 9.625" (244mm) reference width of ATX, the Ultra ATX form factor expands its length to 14.4" (367mm)."

It however also needs editing, along with ALL other ATX pages that use the measurement guide down the right hand side of the page. As all of these pages list UltraATX as being size "244 x ?". So if someone reads this and wants to help the community, go right ahead and fix them all. (talk) 06:21, 17 March 2011 (UTC)


I was doing a google search for mATX (because I came across that term somewhere), and I'm pretty sure it refers to MicroATX... I was wondering if there was a MiniATX as well, rather than mini ITX...or a medium or large? Anyway, if someone who knows for sure wants to add a redirect from mATX to here, and mention it in the text. Rygir 14:53, 10 February 2006 (UTC)

mATX is used to refer to microATX, yes. There is such a beast as Mini-ATX, and it's between microATX and ATX in size, but it never caught on. Aluvus 04:08, 16 July 2006 (UTC)


I'm not sure why Shuttle is mentioned in this article. Their boards are a custom form factor, but they most closely resemble FlexATX (which is what Shuttle usually describes them as). They're actually too long to be either microATX or FlexATX, officially. Aluvus 04:20, 16 July 2006 (UTC)

USB entrapments[edit]

What are USB entrapments? --Astronouth7303 03:36, 27 August 2006 (UTC)

I suspect the intended meaning was "USB enclosures". — Aluvus t/c 06:45, 28 August 2006 (UTC)

Power Supply[edit]

Also, is there a difference between a standard ATX power supply and a Micro ATX power supply? are they the same size or do sizes vary? — Preceding unsigned comment added by (talk)

I don't know, but I'd imagine the power supply must be smaller in size due to the smaller amount of real estate on the back of a microATX-using computer. Don't quote me on that though, it's only a guess. Cynical 10:21, 12 February 2007 (UTC)
Some OEM cases use micro ATX power supplies that are a little smaller then a standard ATX power supply. uATX power supplies only have three screwholes on the rear, but the power connectors are generally the same 20-pin or 24-pin connectors as standard ATX, unless it is a very proprietary system such as an older Sony VAIO for example. The hardcore icon the sandman 18:18, 18 February 2007 (UTC)

suggest merging with ATX[edit]

This article is very short and partially duplicates the ATX article. I suggest merging it into ATX. Please comment! hajhouse 14:36, 30 May 2007 (UTC)


Please add inches to the microATX page. Sorry I couldn't figure out how to do the edit quickly. Here's the measurements: 244mm x 244mm (9.6" x 9.6") and 305mm x 244mm (12" x 9.6")

Thank you. —The preceding unsigned comment was added by (talkcontribs) 15:17, 22 June 2007.

Please add visual size comparison[edit]

There's a very convenient visual size comparison done on Svga page, can someone create one for this page as well? Fry-kun (talk) 06:55, 27 August 2008 (UTC)

mounting holes[edit]

The wikipedia article claims

"The mounting points of microATX motherboards are a subset of those used on full-size ATX board"

However the ATX 2.2 specification claims that holes R and S are new for microatx. You probabblly could mount a microATX board without using these holes but I don't imagine it would be very stable. Plugwash (talk) 11:52, 11 January 2010 (UTC)

Mini-ATX error[edit]

I thing mini-atx has wrong dimension in the color comparison image --Chomwitt (talk) 17:00, 3 April 2012 (UTC)

I agree. mATX is square and smaller than uATX. That diagram really threw me off. (talk) 16:22, 13 January 2013 (UTC)

Broken Reference Link[edit]

Reference 2, is broken, and I could not find a cached page through Google, Yahoo, nor THEBlunderbuss (talk) 20:16, 2 December 2012 (UTC)