CUBE Self-Destruct Button 4 Port USB 2.0 Doomsday Device

My evil lair is about 23,000 square feet and surrounded by water. Would this self destruct button make an explosion big enough to get rid of it?

Does the button be bound to a script on the computer? I need to erase my browser history before destroying my fortress (all part of the evil plan)

Could I just plug this in a plain usb box or do I need a computer