COM Express™ modules are highly integrated off-the-shelf building blocks based on a PCI Express bus architecture that plug into custom made, application-specific carrier boards. COM Express™ modules measure just 95 mm x 125 mm and include generic functions such as video, audio, Ethernet, storage interfaces and USB ports that are needed for most applications. A custom designed carrier board complements the COM Express™ core module with the additional functionality required for specific applications.

COM Express™ is a result of the convergence of the latest technology standards based on serial differential signaling such as PCI Express, USB 2.0, Serial ATA, LVDS and Serial DVO implemented on an extremely compact Computer on Module. Moving from parallel busses such as PCI and IDE to serial busses such as PCI Express is a change the scale of which has not been seen since PCI replaced ISA.
[ COM Express formfactor summary ]