Mifare Card Technology

• This process happens very quickly, however it does take slightly longer than a 125kHz based system and means that generally, a Mifare card cannot be simply swiped or waved at a card reader, but must be presented.
• The Mifare chip also requires more energy than the 125kHz system, so the card must get further inside the RF energy field to power up, resulting in a slightly reduced read range (of around 7-10cm or 2.7-3.9”)

Mifare comes in many forms, each with their own advantages and disadvantages.