Advanced Telecommunications Computing Architecture is the largest specification effort in the history of the PCI Industrial Computer Manufacturers Group (PICMG), with many companies participating. Known as AdvancedTCA™, the official specification designation is PICMG 3.x. AdvancedTCA™ is targeted to requirements for the next generation of "carrier grade" communications equipment. This series of specifications incorporates the latest trends in high speed interconnect technologies, next generation processors, and improved Reliability, Availability and Serviceability.

The offerings on the ATCA platform are as follows: