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General| Name | ACR122U |
|---|---|
| Interface | USB |
| Operating Frequency | 13.56 MHz |
| Operating System Support | Windows, Linux, Mac OS |
| Buzzer | Yes |
| Type | Contactless |
| USB Version | USB 2.0 |
| Supported Card Types | MIFARE, ISO/IEC 14443 Type A and Type B, FeliCa |
| Data Transfer Rate | 106 kbps, 212 kbps, 424 kbps |
| Operating Distance | Up to 50 mm (depending on the card) |
| Power Supply | USB powered |
| Dimensions | 98 mm |
| Compliance/Certifications | CE, FCC, RoHS |
| SAM Slot | 1 SAM slot (SLE 5528/5542 compatible) |
| LED Indicators | Dual-color LED (Red and Green) |
Command to retrieve serial number (UID) or ATS from a connected PICC.
Command to load authentication keys into the reader for MIFARE Classic cards.
Details the authentication command for MIFARE 1K/4K cards using TYPE_A or TYPE_B keys.
Command to read data blocks from a MIFARE card, requiring prior authentication.
Command to write data blocks into a MIFARE card, requiring prior authentication.
Details accessing MIFARE DESFire tags using ISO 7816-4 APDU wrapping or native modes.
Guides on accessing FeliCa tags (ISO 18092) using standard or pseudo APDUs.
Describes accessing NFC Forum Type 1 tags like Jewel and Topaz.
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