I'm still unconvinced.. the way overloading usually causes fires is heating cables till they short and cause sparks/fire. But that is by the by, my main issues:

I'm still unconvinced.. the way overloading usually causes fires is heating cables till they short and cause sparks/fire. But that is by the by, my main issues: If all of the mini-sockets are low rated there is no danger, because of how the socket is set up, if you use the other socket for something with a big draw (i.e. if you have a dual socket and plug one of these into it next to something with a big load it will not overload it). If you overload this device or the socket it will trip the circuit breaker. Same as if you plug all the devices into different sockets on the main. Heat is unlikely to be an issue, even with contact resistance it is related to the device it is powering - and I contend that this is not a plug you would use, rate, recommend or legally allow for high power devices. If you're powering three laptops it works out to about 1W for the whole device (rember, while the cable goes to each socket the pins are part of the device circuit, the parallel branch, not the main series).