100pcs UID RFID Tag keyfob for Mif 1k s50 13.56MHz Writable Block 0 HF ISO14443A Used to Copy Cards

Chip Capacity : 1kCertification : CEFrequency : 13.56mhzModel Number : UPower : Passive CardChip Type : Contactless IC CardSize : 35*28*4mmRead Range : 0-3Recognition Mode : Read-writeContours : Alien CardUID Changeable 1k 13.56mhz KeyUID works the same as the normal IC cards, for Mif 1K S50 standard. Only the Sector 0 Block Zero which is known as the Serial Number/Manufacturers Block(Chip UID) could be programmed to any UID you want. Note: Android MCT won't work with UID, and UID key not work on phone1, UID card block 0 (UID's block) can be modified arbitrarily.2, block 0 directly with normal mif read-write device modification.3, card of the default password for 12 F,FFFFFFFFFFFF