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2. Square (financial services) - Wikipedia

   en.wikipedia.org/wiki/Square_(financial_services)

   Square charges $99 for Square Stand and $59 for its chip-based Square Reader. [55] The Square app is freely downloadable from the Apple App Store and the Google Play Store. Square charges a fee of 2.6% plus $0.10 on every electronically scanned credit card transaction [56] or 3.50% plus $0.15 per manually-entered transaction. No monthly or set ...

3. Contactless smart card - Wikipedia

   en.wikipedia.org/wiki/Contactless_smart_card

   A contactless smart card is a card in which the chip communicates with the card reader through an induction technology similar to that of an RFID (at data rates of 106 to 848 kbit/s). These cards require only close proximity to an antenna to complete a transaction.

4. Contactless payment - Wikipedia

   en.wikipedia.org/wiki/Contactless_payment

   EMV contactless symbol used on compatible payment terminals. EMV stands for "Europay, Mastercard, and Visa", the three companies that created the standard.Contactless payment systems are credit cards and debit cards, key fobs, smart cards, or other devices, including smartphones and other mobile devices, that use radio-frequency identification (RFID) or near-field communication (NFC) for ...

5. Chip Authentication Program - Wikipedia

   en.wikipedia.org/wiki/Chip_Authentication_Program

   The CAP specification defines a handheld device (CAP reader) with a smartcard slot, a numeric keypad, and a display capable of displaying at least 12 characters (e.g., a starburst display). Banking customers who have been issued a CAP reader by their bank can insert their Chip and PIN ( EMV ) card into the CAP reader in order to participate in ...

6. Smart card - Wikipedia

   en.wikipedia.org/wiki/Smart_card

   The plastic or paper card in which the chip is embedded is fairly flexible. The larger the chip, the higher the probability that normal use could damage it. Cards are often carried in wallets or pockets, a harsh environment for a chip and antenna in contactless cards. PVC cards can crack or break if bent/flexed excessively.

7. Proximity card - Wikipedia

   en.wikipedia.org/wiki/Proximity_card

   A proximity card or prox card [1] also known as a key card or keycard is a contactless smart card which can be read without inserting it into a reader device, as required by earlier magnetic stripe cards such as credit cards and contact type smart cards. [2] The proximity cards are part of the contactless card technologies.