The USB Kill 2.0 flash drive “kills” any PC when connected
08.02.16
At the end of August 2016, a Hong Kong company entered the market with the USB Kill project, in which they released the USB Killer device and the Test Shield device, which can be used together with the “killer flash drive” and will protect the receiving party, from damages. Both gadgets are available to order and ship worldwide. 
The USB Killer can be purchased for €49.95, while the Test Shield will cost €13.95.
The roots of the project go back to the earlier development of a Russian researcher under the pseudonym Dark_Purple, who presented a prototype of the USB Killer 2.0 USB flash drive, capable of “frying” almost any device equipped with a USB port.
As the researcher described the principle of operation: “When connected to the USB port, the DC/DC is started, which inverts the converter and charges the capacitors to a voltage of -110V, when this voltage is reached, the DC/DC is turned off and at the same time the field-effect transistor opens, through which -110V is applied to the USB signal lines interface. Further, when the voltage on the capacitors drops to -7V, the transistor is closed and DC/DC is started. And so everything in the cycle is not broken through.
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