With CompactPCI® Serial (PICMG CPCI-S.0) the CompactPCI® architecture moves to serial high-speed interconnects. The system slot supports 8 PCI Express® links, 8 SATA/SAS, 8 USB 2.0/3.0 and 8 Ethernet interfaces plus signals for general system management. The pin assignment of the system and the peripheral slot is congruent. This way it is possible to plug a system slot board into each peripheral slot to support symmetrical multiprocessing.