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Dual Interface (Combi) Cards....... What Are They?

A dual interface/combi card is a microprocessor card which also has a contactless interface. Unlike a hybrid/twin card (which has two separate chips) the dual interface/combi card is a single chip consisting of both interfaces. Within the transport market for instance money can be loaded securely using the contact interface, and when customers need to use them on buses use the simpler contactless interface. These products are targeted at banking, transport markets and other areas that need larger memory than a standard contactless card, high security and dual interfaces such as Citizen Cards.

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