HF 13.56MHz Full Color Printed Onity Lock RFID Keycard is 13.56MHz rfid card for hotel onity locks system . Normally Onity locks offer 2 kinds of protocol rfid chip can work with their system , one is ISO14443A M 1k chip and the other will be ISO14443B ST SRI512 bits chip (now it is off-production and fully compatible is ST25TB512 ) . It has been encypted in rfid chip sector and got authorization from onity system then can work . So which format rfid chip will work with your hotel onity locks you can scan yoru orginal cards or capture pictures with details of chip sector then we can work out and confirm with you . Full color printing , magnetic strip , hot-stamping , barcode is available .