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First of all, there are five extended sockets on the cube model. And the bottom plug is located in the corner which makes it a diamond shape when plugged in the socket. So you can still use all the sockets easily while the nearby socket is plugged. There is also a voltage sensor inside,whenever the loaded voltage is at critical point, there will be cross mark on the unplugged sides which means the forbiddance of plugging more. If the sensor notices the voltage of one side remains at low condition, it will cut off the power supply automatically and restart it the next time machine is turned on.
Taipei City, Taiwan
Miss Yuen Ru, Chou
Taipei city, Taiwan
Mr. Shang Wei, Lin Mr. Tien Ming, Liao