This is an App Store and iTunes gift card issued for the USA: the value is added to the balance of the Apple account in US dollars and can only be redeemed on an Apple ID whose country is the USA. If you opened your Apple ID with the USA as its country, this is the card you need for apps, games and subscriptions. For those who want to change the country, Apple first requires the balance to be spent and subscriptions to be cancelled, so it is easier to choose a card for the country you already have.
A region mismatch is not grounds for a refund, so check the region before you pay. A delivered code cannot be returned or exchanged. After payment the code appears under “Orders” in your account.
