USB NFC Contactless Smart Card Reader with Free SDK

ACR122U NFC Reader is a PC-linked contactless smart card reader/writer developed based on 13.56 MHz Contactless (RFID) Technology. Compliant with the ISO/IEC18092 standard for Near Field Communication (NFC), it supports not only ISO14443 A and B cards but also all four types of NFC tags.

    The ACR122U NFC Reader is a PC-linked contactless smart card reader/writer developed based on 13.56 MHz Contactless (RFID) Technology. Compliant with the ISO/IEC18092 standard for Near Field Communication (NFC), it supports not only ISO14443 A and B cards but also all four types of NFC tags.

     ACR122U is compliant with both CCID and PC/SC. Thus, it is a plug-and-play USB device allowing interoperability with different devices and applications. With an access speed of up to 424 kbps and a full USB speed of up to 12 Mbps, ACR122U can also read and write more quickly and efficiently. The proximity operating distance of ACR122U is up to 5 cm, depending on the type of contactless tag in use.

    In order to increase the security level, ACR122U can be integrated with an ISO 7816-3 SAM slot. Furthermore, the ACR122U NFC Reader is available in module form, permitting easy integration into bigger machines, such as POS terminals, physical access systems and vending machines.

    The ACR122U NFC Reader is ideal for both secure personal identity verification and online micro-payment transactions. Other applications of the ACR122U include access control, e-payment, e-ticketing for events and mass transit, toll road fare collection and network authentication.

Overview of ACR122U NFC Reader

ACR122U stands as a universally recognized PC-linked NFC smart card reader/writer engineered for desktop applications prioritizing dependable USB integration. Operating on 13.56 MHz contactless RFID technology, this model fulfills the demands of access control, payment interaction, and sophisticated NFC testing labs. While physical entry points often rely on wall-mounted RFID Access Control Readers, the ACR122U brings secure credential management directly to the desktop. Aesthetically, the pearl white enclosure presents a clean, professional profile that complements any modern office setting. Measuring 98.0 x 65.0 x 12.8 mm and weighing 70 g, the device minimizes desktop clutter while housing the robust feature set required by system developers and enterprise users alike.

Global Standards and Compatibility

The primary architectural benefit of the ACR122U is its adherence to broad global standards paired with immediate plug-and-play operability. Fully compliant with ISO/IEC 18092 for NFC, the reader seamlessly handles ISO 14443 Type A and B cards, MIFARE, FeliCa, and all four major types of NFC tags, ensuring compatibility with a wide range of credentials from standard ID cards to durable ABS RFID Key Fobs. A built-in antenna measuring 50 mm x 40 mm ensures a stable operating distance of up to 50 mm, providing users with a highly responsive tap experience. Data moves swiftly through the system via 12 Mbps USB full-speed communication, optimized for low-latency identity verification and testing procedures.

Software Integration and Usability

Software integration capabilities define the true value of ACR122U for the global tech ecosystem. With free SDK support deeply integrated into its platform, developers can manipulate card data using PC/SC compliance or CT-API structures. User interaction remains straightforward, guided by an integrated bi-color LED and a clear monotone buzzer. Drawing power directly through the USB port eliminates the need for external adapters, streamlining the workspace. Backed by extensive certification coverage and an MTBF of 408,500 hours, unlike long-range logistics tracking which requires UHF RFID Integrated Readers, or robust standalone entry terminals like standard RFID Access Readers, the ACR122U delivers a mature, factory-backed platform specifically optimized for robust desktop identity, testing, and payment deployments.

FAQ

Q1: What are the exact dimensions of the internal induction antenna?

A1: The internal antenna is engineered to measure 50 mm by 40 mm, ensuring consistent performance for short-range interactions.

Q2: Is a specialized software development kit provided to assist custom programming?

A2: Yes, a free SDK is available as a cornerstone resource to help developers integrate the reader into their own software solutions.

Q3: What is the highest data transfer rate through the standard USB interface?

A3: The hardware supports USB full-speed communication at a maximum theoretical rate of 12 Mbps.

Q4: How does the device manage its power requirements on a busy desktop?

A4: The reader is fully USB-powered, drawing all necessary current from the host computer's port to simplify cabling.

Q5: What characterizes the enclosure finish of this specific model?

A5: The device is finished in a professional pearl white enclosure, providing a clean and high-quality aesthetic for retail and office counters.