U-Key
A U-Key is an implementation of the MIFARE RFID chip, encased in a plastic key style housing. It is used as a prepayment system on vending machines[1] and for some self-service diving air compressors[2] in Switzerland
A U-Key is an implementation of the MIFARE RFID chip, encased in a plastic key style housing. It is used as a prepayment system on vending machines[1] and for some self-service diving air compressors[2] in Switzerland