... Price 2.Durable &stable used 3.Application:Defrayment,Intelligent transporation,access control etc Mifare S50 Intelligent RFID CardFeatures Standard: ISO14443 Type AFrequency: 13 ... access control, Physical Access Control,Checking the balance of electronic purses, Software locking,Digital signature, Loyalty Program,Stored value, Identification, Ticketing,Parking and toll ...