ETX is a highly integrated and compact  (95 × 125 mm) computer-on-module (COM) form factor that can be used in a design application much like an integrated circuit component.

CPB904 CPB904 - ETX Computer-On-Module based on AMD Geode™ LX800

СРB904 is a highly integrated ETX form-factor computer-on-module with low overal power consumption and compact size of 114 × 95 mm.