Welcome to Futurlec. The ELECTRONIC COMPONENTS Superstore. To find the component you are looking for, either search by Part Number or visit the relative department. Need Help. LF CARDS Low Frequency Wide range of Low Frequency RFID cards, including TK4100 and EM4100 Cards. Also available miniature tags and keychains. Ideal for access systems as used in apartments and offices as well as recording entry/exit times for time logging. MIFARE CARDS Mifare Mifare S50 and S70 cards and keychains, can be used to store values as well as being used in access control systems. Large memory make these cards ideal for storing access codes and values for use in transport systems and business promotional campaigns. CARD READERS Readers Now available a wide range of card readers for both LF and HF Cards. Including an EM4100 Card Readers for access control on doorways, offices etc. A Mifare Reader and Writer for storing values in Mifare S50 and S70 HF Cards.