Review on Black Power Strip with 6 AC Outlets & 6 USB Charging Ports, 6ft Heavy Duty Extension Cord - HITRENDS Surge Protector for Home Office & Multiple USB Devices, 1625W/13A Multiplug by Nathan Ortiz

This is a nice and small socket but the USB outputs CANNOT handle 3x 2.4A or 6A total as advertised. I have received, tested and opened both the 5V 2.4A+1Ax2 and 5V/2.4Ax3 versions. They are exactly the same inside. Each USB port on its own can supply 2.4A, but if the total output current exceeds 4.8A, it will shut down completely due to overheating. It's not smart, ie. ALL ports drop to 0, so more than 2 devices cannot be charged at full power. Note that the voltage drops to about 4.7 volts at about 3.5 amps, bringing the total power from the USB ports to about 20 watts. The good news is that all internals are rated for 220 volts and the USB ports work fine, I checked that too. This means it can be a useful add-on for international travel when using a single plug adapter. It is NOT UL listed and I have NOT tried the surge protector so use at your own risk!