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Why are there so many types of plugs? Why can’t the human race agree on using the same plug? What are the plugs even called? Well, this guide will help. You see, there are around 15 types of plugs (labeled Type A to Type O) because different countries decided to create their own design instead of following the US’s standards.

So, before you move to a new place and take a type A charger to a place where there are only Type E sockets, do some research! This guide will help you know exactly the kind of adapter you need if you find yourself in a sticky situation when your socket and plug don’t match. So, plug this guide into your travel list.