Input: 2-pin universal sockets. It can take the 2-pin ungrounded plugs from most of the countries, including all European 2-round-pin plugs, the Austrian 2-pin plug, etc. This adapter, however, will not take the UK plug, nor the big South Africa plug.
Output: 2 flat US power blades. This adapter converts the above input plug into a standard US/Japanese style of 2-pin ungrounded flat power pins.