Wallet killer. Probably doesn’t work at all and whoever buys it wanting to zap someone else’s device gets his/her wallet zapped instead.
Not impressed. Give me a flamethrower and you won’t be able to read the hard driver’s contents when I’’m done either....: )
As a long time IT person, and one who once mistook the power supply cable for a MultiTech Stat-MUX for a keyboard cable (both used the old, large 5 pin DIN plugs,) I can assure you that plugging just 18 volts DC into a computer's keyboard connector port designed for 5 volts DC, is more than enough to fry the circuit boards, effectively destroying the device.
Mark