What is COM Express?
COM Express®, the widely spread COM standard in the embedded world, has been defined by the PICMG® (PCI Industrial Computer Manufacturers Group) in 2005. Since that time and after a few updates, COM Express® has become the most versatile and most scalable COM standard supporting small and cost-sensitive applications as well as high-end computing and graphics intensive solutions. It is designed for the latest chipsets and serial signaling protocols, including PCI Express Gen 3, SATA, USB 3.0, and high resolution video interfaces. The latest update of the COM Express® standard introduced Type 7 pin-out which allows embedded server technology on small modules. COM Express® provides the highest performance of the many small form factor standards and products available.
COM Express® Properties
The COM Express® Standard supports four sizes: Mini, Compact, Basic and Extended. All sizes utilize two highspeed, 220-pin connectors except for the Mini format which only supports one connector. Signal distribution of this connector is similar to the other formats but by no means identical.