ETX (form factor)
EMBEDDED TECHNOLOGY EXTENDED COMPUTER-ON-MODULE SPECIFICATION
ETX Form Factor; ETX 3.0 specification
ETX, standing for Embedded Technology eXtended, is an integrated and compact computer-on-module (COM) form factor, which can be used in a design application much like an integrated circuit component. Each ETX COM integrates core CPU and memory functionality, the common I/O of a PC/AT (serial, parallel, etc.