RFID Security Keycard for Mobile Drive Secure and Hard Drive Secure with AES encryption.<br><br>- Security keycard in credit card format which will lock and unlock the drive for use.<br>- Replacement card in case you have lost one or both of the original keycards that came with your Mobile Drive Secure or Hard Drive Secure.<br>- For use with Freecom Mobile Drive Secure and Freecom Hard Drive Secure.<br>- Keycards are AES encrypted. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5935-00-257-7185, indicating validated use in U.S. government and defense logistics supply chains.