Cheap USB Power Supply Sends Mains Voltage to USB Ports

bigclivedotcom · Demo · 28 min · 2016 · YouTube title: Horrific USB power supply fault. (Electrocution risk.)

Why it's here

Cited in threads about cheap chargers as proof of why proper certified and isolated power supplies are worth paying for.

What it covers

Electronics hobbyist bigclivedotcom tears down a cheap USB power supply with a manufacturing fault that carries full mains voltage to the USB ports, showing the risk of electric shock.