You may have a headache with the transmission speed of disk and
tapes in early days, flash drives in present. The worse is you
don’t have flash drive in hand when you want to have data transfer.
Now we are applying to solve this problem for you.
The close-up of front and back side (Image1)
One end of USB connector is Push-pull (Image2)
The USB cable on the other end can be exten- ded and retracted (Image3)