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Rectangular USB NFC RFID reader with five keys and five cards

YINGHUA

YINGHUA ACR122U NFC RFID Reader USB 13.56MHz with 5 Keys 5 Cards

SKU CH-3A0J-GW4CH

A contactless smart-card reader and writer operating at 13.56 MHz with USB full-speed interface, supplied with five keys and five cards

  • TypeChain Guard
  • MaterialMetal
  • FunctionEntrance
  • USB full-speed interface enables 12 Mbps data transfer
  • CCID-compliant design works with PC/SC applications across platforms
  • 56 MHz contactless technology reads MIFARE, ISO 14443 A/B, FeliCa and NFC tags
  • Up to 424 Kbps read/write speed for efficient NFC tag access
  • Includes 5 keys and 5 cards for immediate testing and deployment

NFC RFID Reader for Contactless Applications

The YINGHUA ACR122U connects via USB to read and write 13.56 MHz contactless smart cards and NFC tags. It supports ISO 14443 Type A and B, FeliCa, and MIFARE protocols for payment, access control, and attendance systems. The device includes five writable S50 cards and five key fobs for immediate testing and deployment.

Passive USB-Powered Operation

The unit draws power directly from the USB full-speed interface, requiring no external supply or cooling. Its built-in antenna enables contactless communication without moving parts, ensuring silent operation during continuous use. CCID and PC/SC compliance allow driverless integration across major operating systems.

424 Kbps Maximum Contactless Data Rate

This throughput ceiling governs how quickly the reader exchanges data with tags and cards during cloning or emulation tasks. Buyers needing faster bulk encoding or long-range reads should evaluate higher-power desktop alternatives. Software is delivered via download link rather than physical media.

Highlights

  • USB full-speed interface enables 12 Mbps data transfer
  • CCID-compliant design works with PC/SC applications across platforms
  • 56 MHz contactless technology reads MIFARE, ISO 14443 A/B, FeliCa and NFC tags
  • Up to 424 Kbps read/write speed for efficient NFC tag access
  • Includes 5 keys and 5 cards for immediate testing and deployment

Specifications

TypeChain Guard
MaterialMetal
FunctionEntrance

Questions about this item

How do I install the ACR122U reader and what step is often missed?

Connect the USB cable to a PC port, then download the driver and SDK from the supplier link because no CD is included in the box.

What maintenance or replacement will the included cards and keys need over time?

The five S50 cards and five key fobs are passive tags with no batteries; replace any that become physically damaged or fail to read after repeated use.

What limit appears first during continuous high-speed operation?

The contactless interface caps at 424 Kbps, so sustained bulk transfers will hit that throughput ceiling before the USB full-speed link does.

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