<h1>RFID Copier: A Comprehensive Guide to Cloning and Security</h1> <h2>Understanding RFID Copier Technology</h2> <p>An <strong>RFID copier</strong> is a device designed to read and duplicate the data stored on Radio-Frequency Identification (RFID) tags and cards. From a personal perspective, my initial interest in this technology stemmed from a fascination with access control systems and how they work. I've always enjoyed understanding the mechanics behind everyday security, and exploring <strong>RFID copier</strong> tools became a natural extension of that curiosity. It's a skill that requires a blend of technical knowledge and practical application.</p> <h3>How an RFID Copier Works: A Technical Deep Dive</h3> <p>These devices function by interrogating a target RFID tag, capturing its unique identifier (UID) and any other stored data, and then writing that information onto a blank, writable tag. My own experience building a simple copier from a kit taught me the importance of frequency compatibility—ensuring your reader/writer matches the tag's frequency (e.g., 125 kHz for low-frequency or 13.56 MHz for high-frequency/NFC).</p> <h4>Key Technical Parameters for a Professional RFID Copier</h4> <p>When evaluating a professional-grade <strong>RFID copier</strong>, such as those offered by TIANJUN, specific technical indicators are crucial. It is important to note that the following technical parameters are for reference data only; specifics need to contact backend management for exact specifications.</p> <ul> <li><strong>Supported Frequencies:</strong> 125 kHz (LF), 13.56 MHz (HF/NFC).</li> <li><strong>Supported Protocols:</strong> EM4100, EM4200, T5577, Mifare Classic 1K (S50), Mifare Ultralight, NTAG213/215/216.</li> <li><strong>Read/Write Distance:</strong> Up to 10 cm for HF, depending on antenna design.</li> <li><strong>Core Chipset Code:</strong> Often based on Proxmark3 RV4 or similar ARM Cortex-M4 microcontrollers.</li> <li><strong>Interface:</strong> USB-C for power and data transfer.</li> <li><strong>Detailed Dimensions:</strong> Typical handheld unit: 120mm (L) x 65mm (W) x 25mm (H).</li> <li><strong>Power Supply:</strong> 5V DC via USB.</li> </ul> <p>I hold the opinio