In another example of how fiat and digital currencies are converging in the financial services industry, Visa on Thursday unveiled a debit card that lets users buy things with fiat money converted from cryptocurrency stored in online wallets.

The new Coinbase Card is directly tied to a person's cryptocurrency balance in digital wallets managed by the eponymous digital currency exchange.

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Coinbase enables the trading of Bitcoin, Ethereum, Ripple's XRP and Litecoin, all of which will also be spendable through the new debit card.

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