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The thermal paper roll size you need depends on your card terminal model.

Find your terminal model in the table below to check the required paper width and roll diameter.

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Card terminal model	Paper width	Roll diameter
A80	58 mm	50 mm
A920pro, A920, A910	58 mm	40 mm
A8900	58 mm	40 mm
S900	58 mm	40 mm
S800	58 mm	50 mm
Ciontek CS30PRO	58 mm	40 mm
Ciontek CS30PRO with professional scanner	58 mm	40 mm
Ciontek CS50C	58 mm	40 mm

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