... 3) Shape: keychain, fob, token, wris key Fobs/Keychain Smart Tag:4) Chip: TK4100, EM4100, T5557, Hitag2, Mifare S50 5) Custom ... , red 7) Application: parking, car, access control8) Looks like articleEM Tag CardFeatures:1) Card type: read only 2) Memory: 64 bit ... , ABS 7) Size: 86 x 54 x 0.8mm (T) 8) Applications: logistics automation, anti-counterfeiting, access control, industrialtransponder key Fobs ...