100 PCS 13.56 MHz UID Writable Rewritable Clone IC Smart Keychain, Compatible with MIFARE Classic 1K, RFID Blank Tag for Access Control Key Tag Rewritable (100)

This card works the same as normal M1 cards. Works exactly like the MF S50, with 16 Sectors and 4 Blocks each Sector, but the Sector 0 Block Zero can be writable. It's advantage This is a perfect solution for a lost irreplaceable M1 Cards ID, you don't need to re-enroll new cards. Just program this new MF 1K's UID to the UID of lost card then you have a new Exactly the same card. User definable access conditions & password for each memory block Organized in 16 sector with 4 blocks of 16 bytes each (one block consists of 16 byte) Specifications Protocol: ISO14443A Capacity: 1k bytes EEPROM memory Rewrite Times: 100,000 times Read Distance: 0 ~ 10 cm(depends on the R/W device) Material: PVC Application Loyalty Ticketing Identification Access Control Package Include 100pcs X UID Rewritable IC Tag

• Material : ABS material, waterproof, drop-proof, and high temperature resistant.
• Working frequency : 13.56 MHz.
• Wide application : UID remote control keys are widely used, including access control systems, elevators, attendance systems, parking lots, apartment cards, etc.
• Rewritable : Can be written countless times.
• Writable and rewritable. It can be erased and written to 100,000 times. Suitable for making new tags and spare tags.