ACM1281U-C7 USB Contactless Reader Module with SAM Slot

The ACM1281U-C7 USB Contactless Reader Module with SAM Slot was designed based on 13.56 MHz technology for fast and easy integration into embedded systems.


ACM1281U-C7 supports ISO 14443 Parts 1-4 Type A and B cards, and MIFARE® Classic series. It has a card reading distance of up to 50 mm (depending on tag type). Moreover, it has an ISO 7816-compliant built-in SAM (Secure Access Module) slot, which can be used with a SAM card for high-level security in contactless transactions.

The ACM1281U-C7 comes with an integrated (on-board) antenna and supports USB firmware upgradability and extended APDU. It supports up to a maximum communication speed of 848 kbps and a detachable USB cable is also available. This reader module is suitable for highly demanding contactless smart card applications, such as vending machine payment systems, kiosks, gaming machines, and other integrated systems.



  • USB 2.0 Full Speed Interface
  • CCID Compliance
  • USB Firmware Upgradeability
  • Smart Card Reader:
    • Contactless Interface:
      • Read/write speed up to 848 kbps
      • Built-in antenna for contactless tag access, with card reading distance of up to 50 mm (depending on tag type)
      • Supports ISO 14443 Part 4 Type A and B cards and MIFARE® Classic series
      • Built-in anti-collision feature (only 1 tag is accessed at any time)
      • Supports extended APDU (max. 64 kbytes)
    • SAM Interface:
      • ISO 7816-compliant SAM slot, Class A (5V)
  • 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



  • e-Government
  • Banking & Payment
  • e-Healthcare
  • Access Control
  • Network Security
  • e-Purse & Loyalty
  • Transportation


Tech Specs:

Physical Characteristics
Dimensions (mm) 106.6 mm (L) x 67.0 mm (W) x 16.0 mm (H)
Weight (g) 20.8 g
USB Interface
Protocol USB CCID
Connector Type Standard Type A
Power Source From USB port
Speed USB Full Speed (12 Mbps)
Cable Length 1.0 m, Detachable (Optional)
Contactless Smart Card Interface
Standard ISO 14443 A and B Parts 1-4
Protocol ISO14443-4 Compliant Cards, T=CL
MIFARE Classic Card Protocol, T=CL
Antenna 65 mm x 60 mm
SAM Card Interface
Number of Slots 1
Standard ISO 7816 Parts 1-3, Class A (5 V)
Protocol T=0; T=1
Built-in Peripherals
LED 2 single-color: Red and Green
Buzzer Monotone
Other Features
Firmware Upgrade Supported
Certifications/Compliance ISO 7816 (SAM Slot)
ISO 14443
USB Full Speed
RoHS 2
Microsoft® WHQL
Device Driver Operating System Support
Device Driver Operating System Support Windows®

Additional information

Weight 20,8 g
Dimensions 106,6 × 67 × 16 mm


Form Factor