Data transmission device and data transmission system

摘要

A data transmission device for secure biometric transmission includes first and second input-output units, and a biometric identification apparatus. The input-output units electrically connect to one of the two electronic devices, respectively. The biometric identification unit is configured for electrically interconnecting the first and second input-output units, receiving a biometric input, outputting biometric data in response to the biometric input, and encrypting the biometric data to be transmitted to one of the electronic device having a storage unit.