A booby-trapped, handmade USB drive that will ‘burn down’ your laptop if you insert it into your USB slot.
With this flash drive, you can physically destroy your computer by blasting a load of voltage to the USB controller with negative voltage. Basically, when we connect up the flash drive to our computer, an inverting DC/DC converter runs and charges capacitors to negative 110V to signal lines of the USB interface. When the voltage on the capacitors increases to negative 7V, the transistor closes and the DC/DC starts. The loop runs until everything possible is broken down. Those familiar with the electronics have already guessed why we use negative voltage here.
It’s called the bomb drive and though its design explained, but fortunately no instructions on how to make one isn’t included. No one knows yet though how well this would actually work.