The exchange rate between the US dollar (USD) and the Nigerian naira (NGN) is constantly fluctuating. To determine how much a 500 USD Amazon card is in naira, one needs to consider the current exchange rate.

Exchange rates are influenced by various factors such as economic conditions, interest rates, and market sentiment. Financial institutions and currency exchange platforms provide the most accurate and up-to-date exchange rates.
To find out the exact amount in naira for a 500 USD Amazon card, it is advisable to check with a reliable currency exchange service or look at the prevailing rates in the market. This will give an approximation of the value in Nigerian currency at that particular time.