USB Killer The killer of electronics USB Killer , known with the trade name USB Kill 2.0 , is a USB thumb drive that allegedly destroys the physical component of any hardware device that it is connected to. [1] It collects the power from the USB power source of the component it is connected to in its capacitors until it reaches a certain voltage (assumed to be 240 Volts) and then it discharges the same amount of voltage. The device has been designed to test components for protection from power surges . However, the device has not generated much interest [1] . The device sells for 49.95 Euros, or around $56 US dollars and has been developed by a Hong Kong based security hardware team for usage by System Administrators for testing devices against the very vulnerability that the team highlighted. [2] As per them Apple is the only manufacturer that protects its devices against USB