A proximity card or prox card, also known as a key card or keycard, is a contactless card technology that can be read without being inserting into a reader device that was required by earlier developed contact type cards: magnetic stripe cards (credit cards, etc.). They are typically used as keycards for facilities access controls (doors, gates, etc.).
A proximity card or prox card, also known as a key card or keycard, is a contactless card technology that can be read without being inserting into a reader device that was required by earlier developed contact type cards: magnetic stripe cards (credit cards, etc.). They are typically used as keycards for facilities access controls (doors, gates, etc.).
Source: Wikipedia "Proximity card" · CC BY-SA 4.0
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