· Safety: Our Products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications. OVP, OCP, SCP Protection.(OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection)· Replacement: This Adapter is a Brand New Replacement One, High Quality Never USED (non-OEM)· Compatibleity: AC/DC Adapter Replacement for RockJam 54-Key & 61-Key Digital Keyboard RJ-561 RJ-654 RJ6544· Note: Please make sure the model of your device before buying· Customer Service: If there is any parts missing or damaged during shipping, please feel free to contact us via email. We will make every effort to provide you with a satisfactory solution within 24 hours.