The basic idea of the USB drive is quite simple. When we connect it up to the USB port, an inverting DC/DC converter runs and charges capacitors to -110V. When the voltage is reached, the DC/DC is switched off. At the same time, the filed transistor opens. It is used to apply the -110V to signal lines of the USB interface. When the voltage on capacitors increases to -7V, the transistor closes and the DC/DC starts. The loop runs till everything possible is broken down.

If you're a mischief-maker of a certain age, you'll remember the idea of the floppy disk bomb, a specially engineered floppy disk that would supposedly melt inside an enemy's drive. This USB is that same basic concept, but evolved. It's designed to electrocute your computer from the inside out.An article about the bomb-drive, first posted on the Russian website Habrahabr.ru by its designer, describes its design and intended effect:The intention, roughly, is to fill a standard-looking USB case with hardware that will pulse a high-voltage charge into a USB port and just fry everything nearby., the guy didn't go into details of how to make one. Either way, folks in the comments are saying they'd buy one in a heartbeat, and the author is actually considering a Kickstarter campaign or something of the sort.Who knows how well would this actually work, but it should should still make everyone think twice before jamming a random USB into their laptops out of curiosity.