That looks like the right answer. Series 700 Model 715 Workstations: Service Handbook http://h20000.www2.hp.com/bc/docs/support/SupportManual/lpv37699/lpv37699.p… HP-HIL Connector Model 715/C, 715/33, 715/50, and 715/75 workstations are equipped with an HP-HIL connector, which provides an interface for the system's keyboard, mouse, and other optional HIL input devices. Consult the documentation that accompanies each input device for specific information concerning its use. 10-Pin Modular Jack Model 715/64, 715/80, 715/100, and 715/100XC workstations are equipped with a 10-pin modular jack. A Keyboard Adapter Module attaches to this connector by means of a special cable shipped with the unit. The Keyboard Adapter Module includes two mini-DIN connectors and an HP-HIL connector. The mini-DIN connectors provide an interface for a AT-style keyboard and other mini-DIN input devices. The HP-HIL connector provides an interface for an HP keyboard, mouse, or other optional HIL input devices. Consult the documentation that accompanies each input device for specific information concerning its use.