This power cord is a custom design that allows the use of a locking clip to secure the cord. It is unique for this generation of ResMed VPAP. Newer models based on S8 or S9 series use. AC Cord for CPAP Machine, - Power Cord - for VPAP Adapt SV and Vpap III ST-A. This cord may also fit Resmed S7 and S8 Lightweight.
