MIFARE™ Classic 4K
MIFARE Classic 4K opens up many new service opportunities by enabling public transport authorities to implement multi-modal systems.
It might be used for a combination of contactless e-commerce and e-business applications on one single MIFARE smart card.
From May 2010 onwards, a MIFARE Classic 4K variant is also available with a 7 Byte UID. For future outlook regarding the 4 Byte UIDs see 4-7Byte UID.