20PCS RFID / NFC ID Card MIFARE Classic 1K 13.56MHz / Proximity Card 125kHz

MIFARE cards have three main differences from a standard proximity card:- The frequency of a MIFARE card is 13.56 Mhz. A standard 1386 proximity card is 125KHz.- The standard MIFARE card is factory programmed with a unique 32-bit serial number. This is a random number and does not contain a facility code. Most 26-bit proximity cards use a facility code within their configurations.- A MIFARE card has memory for storing values (typically up to 1 kilobyte of data). A proximity card does not have the capacity to store values Specifications:*Contactless transmission of data and supply energy (no battery needed)*Operating distance: Up to 100mm (depending on antenna geometry)*Operating frequency: 125khz/13.56MHz*Data transfer: 106kbit/s*Data integrity: 16 Bit CRC, parity, bit coding bit counting anti-collision*Typical ticketing transaction: