Introduction
The ACR122U Smart Card Reader/Writer is a cutting-edge USB-powered device leveraging 13.56MHz technology to deliver seamless compatibility with ISO 14443 Type A/B, MIFARE®, FeliCa, and NFC tags. As the world’s first CCID and PC/SC-compliant reader, it supporting ultra-fast data transfer rates (up to 424 Kbps for NFC and 12 Mbps via USB). Its compact design and multi-protocol support make it ideal for applications like contactless payments, access control, attendance management, and public transit—streamlining operations with enterprise-grade reliability.