JASAG 100pcs Rewritable UID Smart Keys, Mi-Fare 1K S50 RFID Cards Token NFC Tag Copy Fobs, 13.56MHz ABS Access Control Writable Card, Comply ISO 14443A, Block 0 Sector

Product Parameters Chip: UID changeable Material: High quality ABS plastic Operation frequency: 13.56MHz Support: Reading and writing, rewritable Compatible with all door entry system Reading distance: 0-10cm (Depending on the reader's design,environment and application) Working temperature: -40 °C~ 65 °C / -40℉~ 149℉ Read/write Times: 100000 times Size: 31 x 40 x 3 mm / 1.6 x 1.2 x 0.12 inch Package Including: 100pcs blue UID keys Widely Used At: It applies to access control, hotel locks, elevator staff attendance and school campus access and payment control identification and security systems parking lot entry and payment, social security management transportation payment, municipal and ancillary service payment

• 1. Support read, write and reprogram, over 100000 rewrite times. Can clone 13.56MHz IC card, NFC stickers, NOT compatible with 125KHz keys cards.
• 2. Fully compatible to MI-FARE Classic 1K,4-byte UID, 1024 bytes memory, organized in 16 sectors of 4 blocks, compliant to ISO/IEC 14443A protocal.
• 3. Compatible with all kinds of 13.56MHz RFID readers writers and door access control system devices.
• 4. Water resistant. Each comes with Key ring included.
• 5. Each card with a unique encrypted ID number, card data can be reprogrammed.