Debit Card Mach
SMS Remote Support
The SMS Hardware Key of the Sentinel Family of hardware keys (Sentinel SuperPro), developed by world leader Rainbow Technologies, were designed to provide software developers a solid and secure solution for controlling distribution and ensuring revenue protection.
The SMS Hardware Key is attached to the parallel interface port or the USB port on the back of the end user's Daily Report & Update computer. The operation is completely transparent, but if the key is removed parts of the SMS software will not operate.
More information about the hardware key.