68-Pin, Vertical VHDCI Connector Connector compatible with NI SHC68-C68-D4 and C68-C68-D4 cables Build custom-load boards for single-ended test and measurement applications Vertical, through-hole PCB mounting Overview Use the vertical 68-pin VHDCI connector to create your own custom-load boards for your single-ended test and measurement systems. The mating connector, which includes two jack-socket screws, is designed for through-hole printed circuit board (PCB) mounting. These connectors are fully compatible with all NI high-speed digital I/O devices that use the 68-pin VHDCI connector and the SHC68-C68-D4 and C68-C68-D4 cables.