What's the MF 4K Contactless RFID Hotel Key Card
The MF 4K Ving Encryption card
is a hotel keycard with special hotel data encryption ,so that suitable for Ving lock system to open the hotel door .
In normal ,for the Ving card ,the common used chips have MF 1K Classic ,MF 4K Classic ,MF 1K Classic EV1,MF 4K Classic EV1,MF Ultralight EV1,
Each hotel has the specail data request ,so we suggest you place mass order after test our Ving encryption card samples .
free samples available .