I don’t know who would want one of these, but a site called USBKill.com is selling a device (similar in appearance to a USB Flash Drive), that purportedly is designed for testing the surge protection of electronics to their limits – and beyond.
According to the site:
“When plugged into a device, the USB Killer rapidly charges its capacitors from the USB power lines. When the device is charged, -200VDC is discharged over the data lines of the host device. This charge/discharge cycle is repeated many times per second, until the USB Killer is removed.”
Simply put: used on unprotected equipment, the USB Killer instantly and permanently disables unprotected hardware.
USB KILL 2.0 DEMONSTRATION VIDEO