USB Safe

Step 9 Science and Mechanics

How it Works!

The key switch you installed cuts the ground on, and off. Just like a light bulb, a motor, or anything else that runs on electricity, It cannot run without a ground. So there's your basic concepts; It cannot communicate with the computer.

Tips and Tricks!

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*If you cannot delete something from the file, make sure the drive does not have a write protection feature, and if it does, make sure it's off.
*Note: this box is extremely tough. The flash drive inside will brake before it does.
*You can fill the inside with expanding foam to make it waterproof and burglar proof.
*NOTICE: I AM NOT RESPONSIBLE TO ANYTHING THAT YOU ACCIDENTALLY DO TO YOU, YOUR COMPUTER, OR ANYTHING ELSE. THIS SECURE FLASH DRIVE WILL NOT ALWAYS PRVENT SENSITIVE INFORMATION FROM BEING STOLEN.

Comments

[Hwolfw]

I think that instead of using the ground on the switch, use the +5 V power to eliminate the "device malfunction" pop up

[Padlock]

the data cables supply their own power

[DavidRobertson]

use a DPDT key switch for power and data ground

[PCfreak]

Usb cable has no data gnd
bcuz its just a comm. line
red=5V+
green=data recive
white=data send
black=GND

[zapro]

Stop saying that stuff, it's WRONG! The green is Data+ and the White is Data-. USB is a bi-directional data bus where the host and slave takes turn on transmitting data over the USB data pair. The Green wire goes positive, when the white goes negative, and vice versa. This system is called "differential signalling" and makes the signal more noise immune.

[PCfreak]

i took a computer class in high school and they told us that the data has no ground but i guess i learned something new thx zapro