Unlock the Future with RFID! 🔑 Designed for both beginners and pros alike. Perfect for portable projects! Weighs only 20g for effortless handling. Easily connects with your existing systems. Experience lightning-fast data processing. 522 MHz speed 6.1 x 3.05 x 0.38 cm Radio Frequency tech The Arduino RC522 RFID Card Reader Module Kit is a compact and lightweight device designed for seamless integration into various projects. With a memory clock speed of 522 MHz and radio frequency technology, it offers high-speed performance and easy maintenance, making it ideal for both beginners and experienced developers.