From http://www.pcguide.com.

Form Factor

Typical Dimensions
(W x D x H, mm)

Usual Style(s)

Motherboard Connectors

Match to Case Form Factor

Match to Motherboard
Form Factor

PC/XT

222 x 142 x 120

Desktop

AT Style

PC/XT

PC/XT

AT

213 x 150 x 150

Desktop or Tower

AT Style

AT

AT, Baby AT

Baby AT

165 x 150 x 150

Desktop or Tower

AT Style

Baby AT, AT, AT/ATX Combo

AT, Baby AT, AT/ATX Combo

LPX

150 x 140 x 86

Desktop

AT Style

LPX, some Baby AT, AT/ATX Combo

LPX, AT, Baby AT, AT/ATX Combo

ATX/NLX

150 x 140 x 86

Desktop or Tower

ATX Style

ATX, Mini-ATX, Extended ATX,  NLX, microATX, AT/ATX Combo

ATX, Mini-ATX, Extended ATX, NLX, microATX, FlexATX

SFX

100 x 125 x 63.5 *

Desktop or Tower

ATX Style

microATX, FlexATX, ATX, Mini-ATX, NLX

microATX, FlexATX, ATX, Mini-ATX, NLX

WTX

150 x 230 x 86 (single fan)
224 x 230 x 86 (double fan)

Tower

WTX Style

WTX

WTX

* Standard configuration, not including additional top-mounted fan, if any. 50 mm height option also exists.

Copyright 2003 Coastal Dragon. All rights reserved.
The Morphling card artwork at the top of this page is copyrighted by Wizards of the Coast, Inc..