The ACS ACR122U-A9ACSA card reader reads and writes NFC cards and contactless smart cards via USB. It supports applications such as access control, electronic payments and ticketing, identity verification, and other RFID and NFC applications on a computer.

It operates at 13.56 MHz and supports ISO 14443 Type A and B, ISO 18092, MIFARE, FeliCa, and NFC Forum Tag Types 2 through 4. It supports card emulation, peer-to-peer, and tag reading and writing modes, and features a built-in antenna, a dual-color LED, and an audible alert.

• Connection type: USB Type-A
• Cable: Fixed USB Type-A
• Read/write speed: Up to 424 kbps
• Standards and technologies: ISO 14443 Type A and B, ISO 18092, MIFARE, FeliCa, NFC Forum Types 2 through 4
• Modes: Card emulation, peer-to-peer, tag reading and writing
• Compliance: CCID, PC/SC
• Power supply: USB port
• Antenna: Built-in
• Indicators: Dual-color LED and audible alert
• Dimensions: 98 × 65 × 12.8 mm
• Weight: 70 g
• Color: White