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Integrated Motorized Card Reader Writer (IMCRW) device

ATM

What is IMCRW (Integrated Motorized Card Reader Writer)?

The Integrated Motorized Card Reader Writer is a hybrid motorized card reader/writer used in some ATM models, self-service terminals, self-service charging machines, vending machines, and media inquiry machines, supporting magnetic stripe, RFID, and IC card reading.

Discover chargeback reason codes list

Payment Systems

What Are the Discover Chargeback Reason Codes?

Chargeback reason codes differ by card scheme. Here is the list of Discover chargeback reason codes and their descriptions, along with how merchants can use them.

Table listing the EMV chip specifications used by Visa, Mastercard, American Express, JCB, Discover, and UnionPay

EMV

What are EMV Schemes?

EMV standards form the foundation for chip cards to work on terminals worldwide, but each scheme - VSDC (Visa), M/Chip (Mastercard), AEIPS (Amex), J Smart (JCB), D-PAS (Discover), and UICS (UnionPay) - defines its own keys, rules, and card profiles.