Keyboard/Mouse/Reset Cable “Aurora”,  Diamond Systems part 6981301

One end is a 10 pin rectangular connector (with one of the pins, pin 7(?), blocked to prevent reversed insertion).  The other end has an IBM PS/2 keyboard connector, a PS/2 mouse connector and a push-button switch for reset.  Part of the C-AUR-KIT Aurora Cable Kit.

Compatible with sevreal Diamond Systems single board computers (SBC) including
Diamond Systems Aurora SBC PC/104

More info here:
https://www.diamondsystems.com/files/binaries/Aurora%20datasheet.pdf

I have seven units.

Customers outside of the USA:  Sorry but I have to charge $10 to cover Ebay’s fees and shipping costs.