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 MIFARE® and ISO 14443 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.
The ACR122U comes with an optional stand to hold the smart card reader at an optimal angle, so that users can tap contactless cards or NFC-enabled devices onto the ACR122U with ease. For more information, click here to download the brochure of this special accessory.
The ACR122U USB NFC Reader has been counterfeited by certain law-breaking parties. We issue the following declaration to inform our stakeholders of how we are addressing this issue, and to inform customers on how they can protect themselves against illegal products. For more information, please click here.

- USB 2.0 Full Speed Interface
- CCID Compliance
- Smart Card Reader:
- Read/write speed up to 424 kbps
- Built-in antenna for contactless tag access, with card reading distance of up to 50 mm (depending on tag type)
- Supports ISO 14443 Type A and B cards, MIFARE, FeliCa, and all 4 types of NFC (ISO/IEC 18092) tags
- Built-in anti-collision feature (only 1 tag is accessed at any time)
- Application Programming Interface:
- Supports PC/SC
- Supports CT-API (through wrapper on top of PC/SC)
- Peripherals:
- User-controllable bi-color LED
- User-controllable buzzer
- Supports Android™ OS 3.1 and above
物理特性 |
尺寸(mm) |
98.0 mm (L) x 65.0 mm (W) x 12.8 mm (H) |
重量(g) |
70 g |
USB接口 |
协议 |
USB CCID |
电源 |
From USB port |
速率 |
USB Full Speed (12 Mbps) |
连接线长度 |
1.0 m, Fixed |
非接触智能卡接口 |
标准 |
ISO/IEC 18092 NFC, ISO 14443 Type A & B, MIFARE®, FeliCa |
协议 |
ISO 14443-4 Compliant Card, T=CL MIFARE® Classic Card, T=CL ISO18092, NFC Tags FeliCa |
部件 |
LED指示灯 |
1 bi-color: Red and Green |
蜂鸣器 |
Monotone |
认证/标准 |
认证/标准 |
EN 60950/IEC 60950 ISO 18092 ISO 14443 USB Full Speed PC/SC CCID VCCI (Japan) KC (Korea) Microsoft® WHQL CE FCC RoHS 2 REACH |
设备驱动程序支持的操作系统 |
设备驱动程序支持的操作系统 |
Windows® CE Windows® Linux® MAC OS® Solaris Android™ |
ACR122U 已经停产。如需了解替代产品或查询未交付订单,请联系[email protected]。
ACR122U 的驱动 |
PC/SC 安装驱动
258.98 KB
版本 1.1.8.3
22-Feb-2022
|
Mac OS® X 10.6 or above |
MSI 格式的 PC/SC 安装驱动
5.22 MB
版本 4.2.8.0
20-Mar-2018
|
Windows® XP, Windows® Vista, Windows® 7, Windows® 8, Windows® 8.1, Windows® 10, Windows® 11, Windows® Server 2003, Windows® Server 2008, Windows® Server 2008 R2, Windows® Server 2012, Windows® Server 2012 R2, Windows® Server 2016 R2 |
MSI 格式的 PC/SC 安装驱动
5 MB
版本 4.0.6.0
14-Nov-2014
|
Windows® 7 (for users who did not install required Microsoft Windows Updates and get driver signature error (Code 52)) |
PC/SC 驱动
955.93 KB
版本 4.2.8.0
20-Mar-2018
|
Windows® XP, Windows® Vista, Windows® 7, Windows® 8, Windows® 8.1, Windows® 10, Windows® 11, Windows® Server 2003, Windows® Server 2008, Windows® Server 2008 R2, Windows® Server 2012, Windows® Server 2012 R2, Windows® Server 2016 R2 |
PC/SC 驱动
371 KB
版本 2.0.1.0
23-Nov-2015
|
Windows® CE 5.0, Windows® CE 6.0, Windows® CE 7.0 |
PC/SC 驱动包装
3.04 MB
版本 1.1.8
10-Jan-2020
|
Linux ® |
PC/SC 驱动
458 KB
版本 1.1.8
06-Jan-2020
|
Linux®, Mac OS® X |
CT-API 动态库
2.04 MB
版本 1.0.1.1
23-Jan-2017
|
Windows® XP, Windows® Server 2003, Windows® Vista, Windows® Server 2008, Windows® Server 2008 R2, Windows® 7, Windows® 8, Windows 8.1, Windows® Server 2012, Windows® Server 2012 R2, Windows® 10, Windows® 11 |
CT-API 动态库
261 KB
版本 1.0.1
23-Jan-2017
|
Linux®, Mac OS® X 10.5, Mac OS® X10.6, Mac OS® X10.7, Mac OS® X10.8, Mac OS® X10.9 |
Android EVK
421 KB
版本 1.1.5
25-Jun-2019
|
Android™ 3.1 and above |