This RFID key fob has a very cool appearance and uses an NXP Mifare 4k chip.
MIFARE 4k storage memory is very large, and the chip security mechanism divides the memory into multiple areas, each of which can be used independently. This product series is ideal for large-volume transactions such as transportation ticketing, time and attendance solutions, parking lots, and loyalty programs.
| Material | ABS/PC |
|---|---|
| Size | 55*31*7mm |
| Optional chip | EM4305,EM4200,MIFARE Classic 1K,   MIFARE Classic 4K, and MIFARE DESFire |
| Memory | Determined by the chip |
| Frequency | 125kHz,13.56MHz |
| Protocol | ISO11784/11785,ISO 14443A |
| Colour | Blue,Red,Black,etc. |
| Reading distance | 0-10cm |
| Working Temperature | -25°C to 65°C |
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