High Quality Content by WIKIPEDIA articles! CoreExpress modules are complete computer-on-module (COM) highly integrated, small and compact PCs that can be used in an embedded computer board design, much like an integrated circuit component. COMs integrate CPU, memory, graphics, and BIOS, and common IO interfaces. The interfaces are legacy-free, using only digital buses such as PCI Express, SATA, Ethernet, USB, and HD audio (Intel High Definition Audio). All signals are accessible on a high-density, high-speed, 220 pin connector. Although currently available implementations use Intel processors, the specification is open for different CPU CoM solutions.