This Polaris bottom cable is for use with Plantronics H top headsets and Soundpro SWP Corded headsets.  It features a standard clear RJ clip for connection intoan amplifier or certain models of Cisco telephones.  It also features a Quick Disconnect (QD) allowing you to detach the headset from the cord so you can move around freely without needing to take your headset off.

This cable is compatible with the following Cisco models: 6921 / 6941 / 6945 / 7821 / 7841 / 7861 / 7902 / 7905 / 7910 / 7931 / 7940 / 7941 / 7942G / 7945G / 7960 / 7961 / 7962G / 7965G / 7970 / 7971 / 7975G / 8941 / 8945 / 8945G / 8961 / 9951 / 9971.