Today I made a teardown of a travel power extension socket with a USB charger from China with a picture of a mouse on it. It has a mains plug, a cable, mains socket and 4 USB sockets. It immediately looks quite dangerous because of a very thin mains cable and a 3-terminal mains socket, despite the mains plug is just 2-pin non-grounded. The ground (earth) terminal doesn't go anywhere. The charger can't continuously supply the claimed 4.8A current and the mains isolation is questionable. Risk of electric shock and fire.
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