Strongly influenced by the row Telecoms equipment 1, the aTCA format offers high-availability features with hot swapping of blades, monitoring and remote management, a wide range of protocols (10GbE, 40GbE, PCIe, SRIO , Fibre Channel). It is therefore not surprising that he is become the open standard for Class Operator applications at the heart of the telecoms network and communications that require more and more bandwidth to carry huge video data streams in the Cloud. We begin to see even the military became interested in aTCA to manage information flows in the theater.