ZKTeco S70 13.56MHz 4K Mifare Grey Tag Read/Write

A contactless smart card that uses the “MIFARE Classic 4K s70″chip, which is a type of RFID chip offering a larger storage capacity (4 kilobytes) compared to other MIFARE cards, making it suitable for applications like access control, ticketing systems, and identification where more data needs to be stored on a single card; essentially, it’s a high-capacity MIFARE card with enhanced security features