The Peripheral Component Interconnect (PCI) Bus specification was originally introduced by Intel in 1992. Over the years it has been adopted by a number of form factors including the small, rugged PC/104 form factor via its PCI/104 specification featuring a 4-port stacking PCI connector. Legacy applications dating back to late 1990’s and early 2000’s can still be found and ADL Embedded Solutions is one of the few vendors still making this form factor available.