Mifare 1K card

First, MiFare one IC S50 key indicatorscapacity of 8-bit EEPROM Kdivided into 16 sectors, each sector for the four, each of 16 bytes to block access uniteach sector there are a group of independent passwords and access controlEach card has a unique serial number for 32a mechanism for conflict prevention, support for multi-card operationno power supply, comes with the antenna, embedded encryption control logic and communication logic circuit retention period of 10 years can be rewritten 100,000 times, unlimited ReadingOperating Temperature: -20 °C to 50 °C (humidity of 90%) frequency: 13.56MHZ