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ACR122U-A9 USB NFC Card Reader Writer
The ACR122U-A9 NFC Card Reader is a USB contactless smart card reader for 13.56MHz RFID and NFC projects. It is useful for reading supported NFC tags, RFID cards, smart cards, and contactless cards for testing, access control, attendance systems, payment demos, and identification projects.
This reader connects to a computer through USB and supports common NFC and RFID card applications. It is a practical choice for developers, students, makers, and technicians working on PC-linked NFC systems.
Selected Style
ACR122U-A9
Why Choose This NFC Reader?
- Works with 13.56MHz NFC and RFID card projects.
- USB connection for easy PC-linked use.
- Supports contactless card reading and writing.
- Useful for access control, ID systems, attendance, and testing.
- Compact white case for desk or workbench use.
- Good for students, developers, and electronics project builders.
Common Applications
- NFC tag reading and writing
- RFID card testing
- Access control systems
- Time attendance projects
- Smart card learning projects
- PC-linked ID verification
- Library, ticketing, and membership systems
- Arduino, Raspberry Pi, or desktop NFC project testing
Note: Cards, tags, drivers, software, and SDK files may not be included.
Technical Specifications
| Product Type | USB NFC card reader / writer |
|---|---|
| Selected Style | ACR122U-A9 |
| Working Frequency | 13.56MHz |
| Interface | USB |
| Protocol Support | USB CCID and PC/SC |
| Supported Standards | ISO/IEC 18092 NFC, ISO 14443 Type A and B, MIFARE, FeliCa, and NFC tags |
| Read / Write Speed | 106kbps, 212kbps, up to 424kbps |
| USB Speed | USB Full Speed up to 12Mbps |
| Operating Distance | Up to 50mm, depending on card or tag type |
| Antenna Size | 50mm x 40mm |
| Material | Polycarbonate |
| Color | White |
| Size | 98mm x 65mm x 12.8mm |
| Weight | About 70g |
| Operating Temperature | 0°C to 50°C |
Setup Notes
Connect the reader to your computer through USB. Depending on your operating system and software, you may need to install the correct driver, PC/SC tools, or NFC reader software before use.
Place the NFC card or tag near the reader surface. Reading distance may change depending on the card type, tag size, antenna design, and software used.
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FAQ
What is the ACR122U-A9 used for?
It is used for reading and writing supported 13.56MHz NFC tags, RFID cards, and contactless smart cards.
Does it connect through USB?
Yes. The reader connects to a computer through USB.
Can it read MIFARE cards?
Yes. It supports MIFARE and other supported 13.56MHz contactless card types.
What is the reading distance?
The operating distance is up to about 50mm, depending on the card or tag used.
Is software included?
Software may not be included. You may need to install compatible drivers or NFC reader tools based on your system and project.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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