The following OEM and aftermarket products are compatible with the MAC 5500 HD from GE.The MAC 5500 HD Resting ECG System is a premier ECG system, delivering advanced disease management capabilities through one of the industry-leading collections of algorithms and advanced networking. MME will continue to support the lifespan of your unit with quality accessories as well as premium preventive maintenance services through ReNew Biomedical. For more about servicing your devices, Contact ReNew Biomedical here . Please note that different configurations of units may make them incompatible with certain accessories. If you should have any questions, please contact your MME customer representative or get in contact with one here: 866-468-9558.