Features: XT57B Ignitions Anti Theft Chip delivers enhanced coverage with 40% more protocols support than XT27A, eliminating compatibility gaps in modern vehicle security systems while optimizing key programming efficiency. Engineered with ceramic materials for durability, this reusable transponder chip seamlessly integrates with VVDI diagnostic tools, enabling chip generation, cloning, and programming across mainstream anti theft systems. Ideal for auto locksmiths, car dealerships, and enthusiasts requiring compatibility with advanced key programming tools and transponder chip solution. Perfect for modern vehicle key replacements, anti theft systems upgrades, or multi scenario key matching tasks where time sensitived reprogramming is critical. Reduce key synchronization time by 60% using this versatile, reprogrammable transponder chip designed for repeated use across diverse automotive security applications. Specifications: Component:Ceramics Model: XT57B Multiple-protocols compatibility: Single-chip solution replaces multiple OEM chips Series: ID49, ID4A, ID5C, ID11, ID12, ID13, ID46 (PCF7936/7946/7937/7947), ID47, ID48 Package Includes: 1/5/10Pcs XT57B Programming Tool note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.