Embedded Technology eXtended modules
ETX modules (Embedded Technology eXtended) are compact 95 x 114mm form factor Computer On Module (COM). Typically used in a design applications in a similar way to integrated circuit components. Each ETX COM integrates CPU and RAM functionality, typical I/O of a PC/AT (serial, parallel, etc.), USB, audio, graphics, and Ethernet. All I/O signals as well as a full implementation of ISA and PCI buses are mapped to four high-density, low-profile connectors on the bottom side of the module.