1. There is no uniform standard for the location of the access card, which is generally in the middle.
2. Access card face has a chip called RFID, when holding the card containing RFID chip through the card reader, the electromagnetic wave emitted by the card reader will begin to read the information inside the card, the information in this can not only be read, but also can be written and modified, so the chip card is not only a key, but also an electronic identity card.
3. Because as long as personal data is written in the chip, you can know who is in and out of the card reader, and the same technology is also used in the anti-theft chip in the market.
Above is my answer, I hope to help you!
Depending on what chip card you have, if the ID chip is round in the middle, 5-6mm away from the edge of the card.
If the IC chip is rectangular, it is 3-4mm from the edge of the card edge
See what chip card you have, if the ID chip is round in the middle, 5-6mm away from the edge of the card.