GE CAM-14 Acquisition Module with and without leadwires. For use with For use with Mac 5000, Mac 5000ST, MAC 5500, GE MAC CardioSoft Resting ECG System, CASE Stress System, CASE 8000. Resting Module and Stress Test Module. Order (420101-002) lead wires separately as necessary. Data cable for these modules is #2016560-00