NFC Contactless RFID Reader Writer ACR122U
Businesses and developers often face common challenges in NFC and RFID projects:
Limited compatibility with multiple card types, making unified management of smart cards and NFC tags difficult.
Security concerns for sensitive identity verification and payment applications.
Complex system integration across multiple operating systems, resulting in higher development costs.
Organizations need a high-performance, secure, and versatile USB NFC reader to address these challenges efficiently.
ACR122U Solutions & Key Features
Broad Card Compatibility
Supports ISO 14443 Type A & B, MIFARE®, FeliCa, and all four types of NFC (ISO/IEC 18092) tags.
Read/write speed up to 424 kbps; USB Full Speed (12 Mbps) ensures fast, reliable communication.
Built-in anti-collision feature ensures accurate UID retrieval when multiple cards are presented.
Developer-Friendly & Cross-Platform Integration
Free SDK with sample codes accelerates NFC application development.
Plug-and-play CCID and PC/SC compliance reduces integration complexity.
Compatible with Windows®, macOS®, Linux®, Android™ 3.1+, and iOS (with compatible Lightning connector).
User-controllable bi-color LED and buzzer for intuitive feedback.
Environmental & Quality Certifications
ISO 9001 and ISO 14001 certified manufacturing ensures quality and environmental responsibility.
CE, FCC, RoHS 2, MIC, KC, VCCI, WHQL certifications for global compliance.
Technical Specifications
| Dimensions | 98.0 mm (L) x 65.0 mm (W) x 12.8 mm (H) |
| Weight | 70.0 g |
| Interface | USB Full Speed |
| Operating Distance | Up to 50 mm (depends on the tag type) |
| Supply Voltage | Regulated 5V DC |
| Supply Current | 200mA (operating); 50mA (standby); 100mA (normal) |
| Operating Temperature | 0-50 °C |
| Operating Frequency | 13.56 MHz |
| Smart Card Interface Support |
|
| Compliance / Certifications |
|
| Operating System Support |
|
More Customer Reviews: Real-World Experiences with the ACR122U
Here are some additional testimonials from our satisfied customers, showcasing the versatility and reliability of the ACR122U NFC Reader:
“The ACR122U is a fantastic contactless reader. The USB connection makes it very easy to use. We use it for our employee ID cards, and it’s been incredibly reliable. The read and write functionality works perfectly. Highly recommend!” – Sarah J., Office Manager
“I’m using the ACR122U with my Arduino projects, and it’s been a great experience. It’s easy to interact with NFC tags and cards, and the reader is very responsive. I’ve even managed to connect it via Wi-Fi with an additional module.” – Tom B., Electronics Hobbyist
“We integrated the ACR122U into our access control system, and it’s been a seamless process. The device is compatible with our existing software, and the SDK was helpful for customizing some features. We also appreciate its support for type a and b cards.” – Robert M., IT Administrator
Applications: From Access Control to E-Payment and Beyond
NFC Contactless RFID Reader Writer ACR122U is a versatile tool that can be used in a wide range of applications. Here are just a few examples:
Access Control: Securely manage access to buildings, rooms, and other restricted areas using contactless smart cards or NFC tags.
E-Payment: Enable secure and convenient online micro-payment transactions.
E-Ticketing: Streamline ticketing processes for events, mass transit, and toll road fare collection.
Network Authentication: Enhance network security by using contactless smart cards or NFC tags for user authentication.
Loyalty Programs: Implement and manage customer loyalty programs using RFID or NFC technology.
Personal Identity Verification: Securely verify personal identities for various applications.
Business Card: Exchange contact details quickly and easily with an NFC digital business card.
These are just a few examples of the many ways in which the ACR122U can be used. Its versatility and broad compatibility make it an invaluable tool for businesses and individuals across various industries.
Frequently Asked Questions (FAQs)
Q1: What NFC tags can the ACR122U read/write?
A1: Supports NFC Forum Type 1–4 tags, ISO 14443 A/B, MIFARE®, and FeliCa cards.
Q2: Is it compatible with Android/iOS devices?
A2: Yes. Android via USB OTG, iOS via compatible Lightning connector.
Q3: Can the firmware be upgraded?
A3: Yes, USB firmware upgradeable for security and new features.
Q4: Can it be used for secure identity verification?
A4: Yes, for UID reading and NFC-based authentication; however, it does not support a SAM slot for cryptographic operations.
Q5: Is an SDK provided for development?
A5: Yes, free SDK supports PC/SC and CT-API (via wrapper) for custom applications.
