NATIONAL INSTRUMENT — NI9923

National Instruments NI9923 Front-mount terminal block for 37-pin D-Sub Modules 37-Pin Female D-SUB to 37-Pin Female Screw-Terminal, C Series Terminal Block?The NI-9923 includes one 37-Pin female screw terminal with a 37-pin female D-SUB back-end connection to help you connect a circuit to another circuit.