20pcs UID Rewritable Smart IC Clone Card,13.56MHz Changeable RFID PVC Blank Card for 1K S50 M-F1 RFID Access Control, Block 0 Sector,Writable for Door Access Control

Description: Works exactly like the M-F1K, with 16 Sectors and 4 Blocks each Sector, but the Sector 0 Block Zero known as Manufacturers Block where the Chip UID is stored, can be re programmed to any UID you wish. This is a perfect solution for a lost irreplaceable- Cards ID, you don't need to re-enroll new cards. Just program this new M-F 1K's UID to the UID of lost card then you have a new Exactly the same card. Application: Access control, hotel locks, staff attendance, school campus access, membership management, payment control, identification and security systems, parking lot entry, social security management, transportation, municipal and ancillary service. Funtion: All block sector writable.Each block is rewritable and useful Operating Specifications: Waterproof and dustproof Packing: 20pcs UID Cards NoteThis UID card requires a card reader to write. The meaning of writing is just writing the inner code, not writing other data. The Android Mifare Classic Tool and NFC Tools just writes data, such as date, name, etc.

• Material:PVC.Size: Credit card size
• Rewrite times:100,000 times
• Suitable for 13.56MHz card reader. Read distance:0-10Cm(depend on the R/W device).
• Read-write card can provide different access password or logical encryption version, product security is high.
• Fully compatible to M-I-FA-RE C-lassic 1K,4-byte UID, 1K Byte memory, organized in 16 sectors of 4 blocks, compliant to ISO/IEC 14443A protocal.Compatible with all kinds of door access control system.