eXpress Microprocessor Card

The ACOS3X eXpress Microprocessor Card combines high security and user-friendliness, while supporting various applications using a single card. It is fully compatible with other members of the ACOS3 product line and can be paired with the ACOS6-SAM to boost security for any application. The ACOS3X has triple-DES (3DES) crypto-engine hardware, has a memory size of up to 256 KB, and can support up to 128 user files.

About ACOS3X

The new ACOS3x eXpress Microprocessor Card is based on the ACOS3 platform, which has met recognizable success worldwide with its proprietary high security yet user-friendly file structures. It comes with the following superior features:

  • Triple-DES (3DES) Crypto-Engine Hardware
  • Faster processing time
  • Larger EEPROM memory size of up to 256 KB
  • Maximum support of 128 user files

ACOS3X contains a powerful microprocessor and is fully compatible with other members of the ACOS3 product line. Security via ACOS3X can thus be achieved easily without sacrificing the computation time on cryptogram.

Similar to ACOS3, ACOS3X enables a single card to support various applications such as loyalty program, parking registration, access control, e-ID and electronic purse.

ACOS3X may also be paired with ACOS6-SAM for mutual authentication, secure messaging and key diversification, in order to provide utmost security for any application.

- ACOS3X-Mag: Contact card with magnetic stripe

ACOS3X Standard Features

  • Full 256KB of EEPROM memory for application data
  • Compliance with ISO 7816 Parts 1, 2 and 3
    • Supports T = 0 direct protocol
    • Supports high-speed transmission rate from 9.6 to 223.2 kbps with modifiable ATR
    • Supports ISO 7816 Part 4 File Structures: Transparent, Linear Fixed
  • Supports DES/3DES hardware crypto-engine
  • Has five secret codes + Issuer code
  • Has PIN code that may be updated by the card holder
  • Supports Key Pair for Mutual Authentication
  • Supports Session Key based on FIPS140-2 compliant true random numbers
  • Supports Secure Messaging and MAC option to ensure that the data is secured from third party attacks
  • Enhanced security with ACOS6-SAM cards
  • Supports Account File Data Structure that can be enabled for secure purse/payment applications

ACOS3X Typical Applications

  • e-Government
  • e-Healthcare
  • Access Control
  • Network Security
  • e-Purse & Loyalty
Release Date Drivers OS Support Version File Size Notes
Driver Not Applicable For This Product
Product Presentation

Product Presentation of ACOS3X eXpress Microprocessor Card (Contact)

Functional Specification

Functional Specification of ACOS3X eXpress Microprocessor Card (Contact)

Reference Manual

Reference Manual of ACOS3X eXpress Microprocessor Card (Contact)

Contact Us

Hong Kong Headquarters

Advanced Card Systems Ltd.

Units 2010-2013, 20th Floor

Chevalier Commercial Centre

8 Wang Hoi Road, Kowloon Bay.

Hong Kong

Tel: +852-2796-7873

Fax: +852-2796-1286


Japan Office

Advanced Card Systems (Japan) Ltd.

2-17-17, Nagatacho, chiyoda-ku, Tokyo

100-0014 Japan

AIOS Nagatacho Building

Tel: +81-3-6205-7201

Fax: +81-3-6205-7202



Manila Office

ACS Technologies Ltd.

Unit 2106, One San Miguel Avenue Building

San Miguel Avenue cor. Shaw Boulevard

Ortigas Center, Pasig City,


Tel: +632-633-6891

Fax: +632-638-5732


USA Office

Advanced Card Systems (USA) Ltd.

21 Chippenham Drive Voorhees,

NJ 08043


Tel: +1-856-784-7177 / +1-609-332-8593

Fax: +1-416-591-9123


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