USB Killer – ESD Tester to test and disable USB devices

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.

Source: USB Killer – ESD Tester to test and disable USB devices

DeskDock – use your android device as a second PC monitor

DeskDock allows you to share your computer’s mouse with your Android devices via a USB cable. The app enables you to control your Android device as if it was an additional monitor for your computer. Simply move your computer’s mouse cursor over the screen boundaries to use it with your Android devices.

Source: DeskDock Free – Android Apps on Google Play

It’s just like synergy but for Android