# RFID Duplicator ## What is an RFID Duplicator? An **RFID duplicator** is a device used to read, write, and clone data stored on RFID (Radio-Frequency Identification) tags and cards. In my personal experience working with access control systems, I've found these tools to be incredibly powerful for legitimate security auditing and system management, though they must be used ethically and legally. I've always had a knack for understanding wireless technologies, which helped me quickly master the technical nuances of RFID protocols. ### Technical Specifications and Parameters of a Typical RFID Duplicator When selecting an **RFID duplicator**, it's crucial to examine its technical capabilities. Below are detailed specifications for a common high-frequency model. *Please note: These technical parameters are for reference data only. For exact specifications, you need to contact backend management.* * **Supported Frequency:** 13.56 MHz (HF) * **Supported Protocols:** ISO 14443A, ISO 14443B, ISO 15693, Mifare Classic 1K/4K, Mifare Ultralight, NTAG, etc. * **Chipset / MCU Code:** Typically based on a dedicated RFID reader IC like NXP's PN532 or a similar variant, coupled with an ARM Cortex-M series microcontroller (e.g., STM32F103). * **Memory:** Onboard flash memory for storing dumped card data, often 1MB or more. * **Connectivity:** USB (for power and data transfer to PC software), sometimes Bluetooth or Wi-Fi modules in advanced models. * **Power Supply:** 5V DC via USB. * **Dimensions:** Approximately 100mm (L) x 60mm (W) x 15mm (H). The exact form factor can vary by manufacturer. * **Operating System Compatibility:** Windows, Linux, macOS (driver dependent). * **Read/Write Distance:** Typically 0-5 cm, depending on antenna design and tag type. ### Legitimate and Entertaining Use Cases Beyond security, **RFID duplicators** have fun applications. I once used one to create backup copies of my library card and gym membership tag after losing the originals repeatedl