It won;t save you any money, but what I normally do is use an IDC 24 pin microribbon socket, a short lenght of IDC cable and a 25 pin header plug and socket to connect it to the PCB. The reason is that hte pins of a microribbon connector are not at 0.1" pitch which makes laying out the PCB a little harder, and protoyping the design on stripboard or square pad board a lot harder. Of course you can use one cable assembly (microribon socket - header socket) for several different prototypes. I would advise against buying cheap IDC microribbon connectors. I did, and had problemes getting them to make reliable connections ot the cable. In the end I bought the (much more expensive) 3M ones, and had no prolems at all (I would have ought those in the first place, but I didn't realise I could get them easily). The part you will have prolems getting is the jackpost to screw the GPIB cable jackscrews iunto. The female thread is M3.5 (3.5mm diameter, 0.6mm pitch IIRC). The male thread, used to fit it to the socket/panel is anything you like (often 6-32 UNC). I haev found no source of jackposts with an M3.5 female thread, I resort to making my own, but then I have plenty of time and a reasoanble workshop. -tony