The RFID Access Control Clone Badge is a rewritable NFC smart chip designed for duplicating 13.56MHz access control credentials. Compatible with Mifare Classic 1K S50 cards, this tag features a Block 0 rewritable UID that enables the cloning of key fobs, access cards, and NFC tags for building entry, parking systems, and other proximity-based security applications.
| Parameter | Value |
|---|---|
| ----- | --- |
| Frequency | 13.56MHz |
| Protocol | ISO/IEC 14443A |
| Chip Type | Mifare Classic 1K S50 Compatible |
| Memory | 1KB EEPROM |
| Sector Organization | 16 Sectors × 4 Blocks (16 bytes each) |
| Rewritable UID | Block 0 Sector 0 (Gen1a/CUID) |
| Read/Write Cycles | Up to 100,000 times |
| Default Factory Key | FFFFFFFFFFFF |
| Reading Distance | 0-10cm |
| Operating Temp | -40°C to 65°C |
| Material | ABS Plastic / PVC |
= Key Features =
Block 0 Rewritable UID sector can be reprogrammed to match any 4byte UID from the original card [citation:4][citation:8]
100,000 Rewrites - Supports extensive rewriting for testing, troubleshooting, and replacement without needing new credentials [citation:1][citation:4]
1K Memory - 1024 bytes of EEPROM storage with 16 sectors (4 blocks each) for complete data cloning [citation:1][citation:4]
Compatible With Readers Works with all 13.56MHz RFID readers and door access control systems tested with MFRC522, ACR122U, and PN532 modules [citation:1][citation:3]
Multiple Form Factors - Available as key fobs, adhesive stickers, PVC cards, and coin tags
Android NFC Compatible - Changeable with Android apps (Mifare Classic Tool, NFC Tools) and standard writers like Proxmark3 [citation:8][citation:12]
√ Works with most 13.56MHz access control systems (Legacy & Older)
√ Android NFC app compatible (MCT, NFC Tools)
√ Complete memory dump and restore capability
√ Multiple form factors available (stickers, key fobs, cards, coins)
√ User-programmable with proper equipment
√ Nonvolatile memory retains data after poweroff
The RFID Access Control Clone Badge provides a practical solution for replacing lost access credentials and creating backup copies of compatible 13.56MHz key fobs and cards. Ensure you understand access system compatibility and local legal restrictions before use.
RFID NFC CLONETAG ACCESSCONTROL 13.56MHZ MIFARECLASSIC 1K S50 UID CUID REWRITABLE ARDUINO #DIY New Best Seller RFID Clone