UID can be changed by all devices.

UID Changeable 1K S50 Chinese Magic Card (MIFARE® Compatible)

White Card

UID Changeable 1K S50 Chinese Magic Card (MIFARE® Compatible)

(11 Reviews) $1.80 $30.00
4 Byte UID Changeable 1K S50 Key Fob

Key Fob

4 Byte UID Changeable 1K S50 Key Fob

(19 Reviews) $2.00 $30.00