Icom CT-17 level converter. I sold my 756ProIII and don't need it anymore. Includes manual, all cables (CT-17 to Icom rig; DB-25 to DB-9 to connect CT-17 to computer). Also includes power supply. Works great. $80 + $10 UPS ground shipping. Ted Roycraft, W2ZK 908-867-7093 w2zk at comcast.net