Universal serial bus stick for data transmission, has connector unit allowing exchange of data frames between front universal serial bus male connector and rear universal serial bus female connector or encryption unit

摘要

The stick (4) has a front universal serial bus (USB)male connector (32) on a front face. A printed circuit board card is fixed on the front male connector. An encryption unit (130) is arranged in the stick. A rear USBfemale connector (34) is arranged on a rear face of the stick. A software connector unit (150) is utilized for allowing exchange of data frames between the front USBmale connector and the rear USBfemale connector or the encryption unit.