ACR39U Smart Card Reader writer



ACR39U Smart Card Reader ushers in new and modern technology to the world of smart card readers. This compact smart card reader brings together sophisticated technology and modern design to meet rigorous requirements of smart card–based applications.

It also features a USB Full Speed interface and a smart card read/write speed of up to 600 Kbps. Highly durable, ACR39U can last for 100,000 card insertion cycles. ACR39U also has various certifications, such as EMV 2000 Level 1 and PBOC, making it the ideal smart card reader for your e-Banking and e-Payment application needs

It is fully compliant with PC/SC and CCID specifications, and supports various operating systems such as Windows, Linux and Mac. Additionally, ACR39U may be used on mobile devices running on the Android™ platform versions 3.1 and above.

With its sleek, stylish design and powerful core, the ACR39U is the ideal peripheral for your smart card applications.



  • Supports ISO 7816 Class A, B and C (5 V, 3 V, 1.8 V) cards
  • Supports microprocessor cards with T=0 or T=1 protocol
    Supports memory cards such as:
    Cards following the I2C bus protocol (free memory cards) with maximum 128    bytes page with capability, including:
    Atmel®: AT24C01/02/04/08/16/32/64/128/256/512/1024
    SGS-Thomson: ST14C02C, ST14C04C
    Gemplus: GFM1K, GFM2K, GFM4K, GFM8K
    Cards with intelligent 1k bytes EEPROM with write-protect function, including:
    Infineon®: SLE4418, SLE4428, SLE5518 and SLE5528
    Cards with intelligent 256 bytes EEPROM with write-protect function, including:
    Infineon®: SLE4432, SLE4442, SLE5532 and SLE5542
  • Supports PPS (Protocol and Parameters Selection)
  • Features Short Circuit Protection
  • Application Programming Interface:
    Supports PC/SC
    Supports CT-API (through wrapper on top of PC/SC)



Dimensions 72.2mm (L) x 69.0mm (W) x 14.5mm (H)
Compliance / Certifications
  • EN60950/IEC 60950, ISO 7816, USB Full Speed, EMV™ Level 1 (Contact),  PC/SC, CCID, CE, FCC, WEEE, RoHS 2, REACH, TAA (USA), J-LIS (Japan), VCCI (Japan), PBOC (China)
  • Microsoft® WHQL
Interface USB 2.0 Full Speed
Supply Voltage Regulated 5 V DC
Supply Current Max. 50 mA
Operating Temperature 0-60 °C
CLK Frequency 4.8 MHz
MTBF 500,000 hrs
Smart Card Interface Support
  • ISO 7816 Class A, B and C ( 5 V, 3 V, 1.8 V )
Operating System Support
  • Windows®
  • Linux®
  • Mac OS®
  • Android™
  • Solaris


The ACR39U SDK is a complete package containing all the vital components required for the development of smart card applications using the ACR39U PC-linked smart card reader. The ACR39U SDK provides developers with tools, utilities, and sample codes, which enable the convenient and effective incorporation of smart cards into their solutions.


Smart Card Reader(s)
  • 1 x ACR39U-U1 Smart Card Reader
Test Card(s)/ Token(s)
  • 5 x ACOS3 Microprocessor-based Cards
  • 5 x SLE 5542 memory cards
  • ACS Smart Card and Reader Tool
    • Enables the user to perform smart card reader and card-related commands
  • Tools & Utilities
    • QuickView
      • Checks for proper driver installation
    • PCSC Learning Tool
      • Shows the use of the PC/SC API's step-by-step and the parameters that need to be used
    • Script Tool 4
      • Allows the user to communicate with a smart card by using script command files
    • Script Commander PCSC - allows you to send a predefined sequence of smart card commands to your CPU card
  • Sample codes
    • Demonstrates basic commands used to communicate with the cards and readers
    • Available in the following programming languages: 
      • Active X (x86 / x64)
      • Java (x86 / x64)
      • Linux C++ (x86 / x64)
      • MS Visual Basic .NET 2013 (x86 / x64)
      • MS Visual C# .NET 2013 (x86 / x64)
      • MS Visual C++ .NET 2013 (x64)    
      • MS Visual Basic C++ 6.0 (x86)
  • ACS Smart Card Reader Driver
  • Reference Manuals
SDK Operating System Support
  • Windows ® 7, Windows® 8.1, Windows® 10, Linux Ubuntu 16.04





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