The Intra-Switch is compatible with most .1" x .1" (2.54mm x 2.54mm) sockets and mating headers. They can be used for switching command signals and programmings optional preset logic functions.
The part numbers that Digi-Key carries are:
20 pin = 922578-20-ND
34 pin = 922578-34-ND
40 pin = 922578-40-ND
50 pin = 922578-50-ND
These can also be used with the Ribbon Cable Intra-Connector