Smart Card Reader ACS ACR122U USB 2.0 White

The ACR122U NFC Reader is a PC-linked contactless smart card reader/writer operating at 13.56 MHz and compliant with ISO/IEC 18092 for Near Field Communication (NFC). It supports Mifare®, ISO 14443 A and B cards and all four NFC tag types. The device connects via USB 2.0 Full Speed and is CCID and PC/SC compliant, enabling plug-and-play operation with a variety of devices and applications. With read/write speeds up to 424 kbps and a proximity operating distance up to 50 mm (dependent on tag type), the compact white unit with a 1 m cable is suitable for integration into systems or for portable use.

Advantages

The ACR122U offers broad card and tag compatibility including ISO 14443 A/B, Mifare and FeliCa, plus support for all NFC tag types. It provides fast contactless data transfer (up to 424 kbps) and full USB 2.0 speed for efficient communication. CCID and PC/SC compliance ensure easy plug-and-play deployment across different platforms, while optional ISO 7816-3 SAM slot and module form factor allow enhanced security and straightforward integration into POS terminals, access-control units or vending machines. Built-in antenna, anti-collision handling, user-controllable bi-color LED and buzzer add practical usability features.

Suitable for

• e-Government and identity verification
• e-Banking, e-Payment and micro-payment transactions
• e-Ticketing for events and public transport
• Access control and physical security systems
• Transportation fare collection and toll systems
• Loyalty and membership programs

Key specifications

• Interface: USB 2.0 Full Speed
• Compliance: CCID, PC/SC, ISO/IEC 18092 (NFC)
• Supported card/tag types: ISO 14443 Type A & B, Mifare, FeliCa, all 4 NFC tag types
• Read/write speed: up to 424 kbps
• Proximity reading distance: up to 50 mm (dependant on tag type)
• Peripherals: user-controllable bi-color LED and buzzer
• Weight: 0.07 kg
• Colour: White
• MPN/EAN: ACR122U / 5712505469576

How to use

Connect the ACR122U to a host device using the supplied USB cable; the reader is CCID and PC/SC compliant so most modern operating systems will recognise it as a plug-and-play device. Place a compatible contactless card or NFC tag within the proximity zone (up to the specified reading distance) to read or write data. Use vendor drivers or PC/SC-compatible middleware and your application software to issue commands, perform authentication, and manage data exchanges. For enhanced security workflows, install and use an optional ISO 7816-3 SAM if required by your application.

Usage recommendations

Position tags or cards close to the built-in antenna and avoid large metal surfaces between the tag and reader to ensure reliable communication. Choose the module version for permanent integration into POS, vending or access-control equipment; use the standalone reader for desktop or portable scenarios.