These stored value cards give kids without credit cards a way to buy the in-game virtual currencies with real money.

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There are stored-value cards, which allow customers to load money onto a microchip-bearing piece of plastic.

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The company points out that customers can't bank with the card or use it outside the U.S. But other stored-value cards, often branded by Visa or MasterCard, can be accessed for cash via atms worldwide and reloaded with cash online or at checkout counters without a bank account or face-to-face identity verification.

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