Reply To: UID vs alternative ID (barcode) and how readers work

Forum › MIFARE general topics and applications › UID vs alternative ID (barcode) and how readers work › Reply To: UID vs alternative ID (barcode) and how readers work

Re: UID vs alternative ID (barcode) and how readers work

23. February 2017 at 11:23

TapLinx Support
What I said: the UID of all contactless products (tags and MIFARE Classic) is 7 byte UID. This is most common. A 4 byte UID was used in the past and is currently available only for customers who must be compatible with old systems. A UID of 4 bytes cannot be unique anymore, the space is already exhausted.

The TapLinx team
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