According to Xicai.com, POS code scanners can be connected to bank card machines because they both follow the same technical standards and communication protocols.A POS code scanner is a device that reads barcodes or two-dimensional codes, and a bank card machine is a device that reads bank card information.
Both can be connected to a computer or other device through a USB interface or wirelessly, so they can be easily connected to a bank card reader to realize the functions of reading bar codes or 2D codes and reading bank card information.