What is card reader for Android ?

The card reader is a device that helps businesses to accept credit or debit card payments. It can be powered by a USB cord, or by batteries. A card reader can be used for paying for things and for reading other information on the magnetic strip, like credit card numbers, PINs, and more. With cashless and card payments becoming popular, offering these payment options help businesses retain customers and boost sales. Card readers, also known as credit card terminals can accept transactions via magstripe, Chip, and PIN, or contactless NFC payments.