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DTX (form factor)

From Wikipedia, the free encyclopedia
(Redirected fromMini-DTX)
Physical standard for computer motherboards
Comparison of the form factors for motherboards ATX, μATX (micro-ATX),DTX, mini-ITX andmini-DTX

TheDTXform factor is a variation ofATX specification[1] designed especially forsmall form factor PCs (especially forHTPCs) with dimensions of 8 × 9.6 inches (203 × 244 mm).[2] An industry standard intended to enable interchangeability for systems similar toShuttle's original "SFF" designs,[3]AMD announced its development on January 10, 2007. AMD stated that the DTX form factor is an open standard, and is backward compatible withATX form factor cases. They also present a shorter variant namedMini-DTX which is smaller inPCB size of 8 × 6.7 inches (203 × 170 mm).[2]

The specification provides for up to 2expansion slots on a DTX motherboard, in the same position as the top two slots on an ATX ormicroATX board. The spec also provides for optionalExpressCard expansion slots on DTX motherboards.

Comparison

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DTX is a shorter version of ATX and micro-ATX, and Mini-DTX is a slightly longer version ofMini-ITX. Mini-ITX can have only one expansion slot, whereas Mini-DTX has the same width and can have two expansion slots.

SpecificationYearDimensions of motherboardExpansion slots
ATX199512 × 9.6 in (305 × 244 mm)7
microATX19979.6 × 9.6 in (244 × 244 mm)4
DTX20078 × 9.6 in (203 × 244 mm)2
mini-DTX8 × 6.7 in (203 × 170 mm)
mini-ITX20016.7 × 6.7 in (170 × 170 mm)1

Benefits

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There are several benefits DTX provides to reduce production costs.[4]

  • DTX will allow up to four motherboards – for low cost – per standard printed circuit board manufacturing panel sizes
  • Mini-DTX will allow up to six motherboards – for low cost – per standard printed circuit board manufacturing panel sizes
  • DTX motherboards can be manufactured in as few as four layers of printed circuit board wiring for motherboard cost savings
  • By using backward compatibility with ATX, vendors may offer a low-cost DTX products with little development expense

See also

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References

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  1. ^"ATX Specification is inch-based". Archived fromthe original on 2008-11-08. Retrieved2010-02-12.
  2. ^ab"DailyTech report". Archived fromthe original on 2007-01-12. Retrieved2007-01-11.
  3. ^Early SFF Description
  4. ^AMD Press Release[permanent dead link]

External links

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