Fixed exchange rate system
A fixed exchange rate, often called a pegged exchange rate or pegging, is a type of exchange rate regime in which a currency's value is fixed, or pegged, by a monetary authority against the value of another currency, a basket of other currencies, or another measure of value, such as gold or silver. There are benefits and risks to using a fixed exchange rate system.
Source: Wikipedia — Fixed exchange rate system (CC BY-SA 4.0)