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XTX

Wikipedia contributorsAdapted for Fathomly · View authors
1 min read
Source updated August 31, 2026

XTX is a computer-on-module (COM) standard for x86-based embedded devices. XTX adds PCI-Express, SATA, and LPC capabilities. The standard was promulgated by Advantech Corporation, Ampro, and Congatec.

ETX XTX COM Express (Type 2)
Dimensions 95 × 114 mm (3.7 × 4.5 in) 95 × 114 mm (3.7 × 4.5 in) (ETX footprint)
  • 110 × 155 mm (4.3 × 6.1 in) (extended)
  • 95 × 125 mm (3.7 × 4.9 in) (basic)
  • 95 × 95 mm (3.7 × 3.7 in) (compact)
  • 55 × 84 mm (2.2 × 3.3 in) (mini)
Legacy1 support Full legacyLegacy except ISALegacy except ISA
PCI Express support -4 Lanesup to 6 Lanes (basic)
PCI Express Graphic support --up to 16 Lanes
Ethernet support 10/10010/10010/100/1000
IDE support 2 IDE, 2 SATA22 IDE, 4 SATAIDE, 4 SATA
LPC support -yesyes
USB support 4 USB6 USB8 USB
Audio support Line In/Out, MicAC'97, Line In/Out, MicAC'97, Line In/Out, Mic, AC'97 digital, HDA
Power 5V, 5VSB5V, 5VSB12V, 5VSB
Notes:
  1. "Legacy" is defined as the older PC peripherals and bus, such as ISA bus, RS-232 serial, IEEE 1284 parallel, floppy, and PS/2 keyboard & mouse.
  2. ETX 3.0 adds SATA via a topside connector on the board.
Watch videos about XTXExplainers and documentaries on YouTube (opens in a new tab)

Sources and credits

This article is adapted from the Wikipedia article “XTX”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.

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