EM4550 cards, or TITAN cards, are contactless RFID cards operating in LF at 125 kHz. Equipped with read/write data transmission modes, they contain 1 kilobit of EEPROM memory, which can be password protected, and a UID (unique identifier).
They are used for various applications such as ticketing, identification and access control at hospitality facilities and companies, loyalty programmes and as virtual wallets for self-service machines (car washes, vending machines, laundromats).
EM4550 cards are available in PVC, PETG and wood, in the following sizes: 86 mm x 54 mm x 0.86 mm for PVC and PETG, 86 mm x 54 mm x 1.3 mm for wood.
| RFID chip | EM4550 or TITAN |
| Chip frequency | 125 kHz |
| Memory | 128 Bytes |
| UID | 8 Bytes |
| Manufacturer | EM Microelectronic |
| ISO Standard | 11784 / 11785 |
