DTX format

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Comparison of ATX, µATX, DTX , mini-ITX and mini-DTX

The DTX format is a form factor for motherboards (motherboards) of microcomputers , which was introduced by AMD in early 2007 . At 244 mm x 203 mm, DTX mainboards are significantly smaller than the mainboards of the ATX format , but they are backwards compatible with this . The Mini-DTX format is an even smaller version with 170 mm × 203 mm (less depth). DTX is intended both for use in normal PCs and for use in living room computers.

In contrast to the Mini-ITX format, DTX offers two expansion slots, probably one PCI and one PCI Express connection each . In addition, an ExpressCard slot can be installed as standard . This is probably placed on the underside (as with some mini-ITX boards).

As an advantage compared to the usual ATX formats with 6 or 4 slots, significantly lower costs for the production of boards are mentioned, since a manufacturer uses 4 DTX or even 6 mini DTX mainboards instead of 2 ATX mainboards from a standard AT board can cut. The trend here is towards fewer and fewer expansion cards in PCs, as on the one hand components such as hard disk controllers and network interfaces have become standard components and are installed consistently on the mainboard, and on the other hand, expansion components are increasingly being operated externally at USB interfaces and are often no longer available as plug-in cards are. So far, this development has hardly led to smaller PC cases , since the savings from the µATX format are hardly worthwhile in this regard (6 cm in height for tower cases).