ACS ACR1251T Portable USB NFC Reader II

A black, USB connected, thumbstick sized, USB firmware upgradeable, portable NFC device that supports reading/writing NFC tags and high-speed NFC tag encoding; supports all four NFC tag types.
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NFC tag NDEF encoding service

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Product Reader/Writer
Manufacturer Advanced Card Systems
Manufacturer Sku ACR1251T-E2ACSA621
Country of Manufacture Hong Kong SAR China
Shipment Origin Hong Kong SAR China
Harmonized Tariff Code 8471.60.90 (Input or Output Unit)
Availability Special Order
Custom Stock Status Custom Order
Lead Time 1 Week
Minimum Order Quantity 1
Color Black
Dimensions 75.0 mm (L) x 30.0 mm (W) x 12.7 mm (H)
Tag Technology NFC
Frequency 13.56 MHz (NFC)
Compliance CE, RoHS
Connection USB 2.0 (Type A)
Features Lights, NFC
Power USB
NFC Mode Tag Reader/Writer
NFC Standards ISO 14443 Type A, ISO 14443 Type B, ISO 18092, MIFARE, FeliCa, PC/SC
Operating System Android, Linux, Mac, Windows
Operating Temperature 0° C to 60° C
Shelf Life 10+ Years @ 23° C, 50% RH
Weight (kg) 0.0158

The ACR1251T is the portable version of ACR1251U USB NFC Reader II. ACR1251T offers advanced features such as firmware upgradeability and support for NFC tags and devices making it ideal for contactless applications with added security functions.

ACR1251T is suitable for any contactless smart card application such as personal identity verification, network login, online banking, and micropayment. With its enhanced NFC features, ACR1251T is also ideal for non-conventional NFC applications. Such applications include smart posters for advertising, marketing, and communication purposes.

Furthermore, ACR1251T is PC/SC-compliant, allowing interoperability across different applications and platforms. ACR1251T also supports remote post-deployment firmware update, which eliminates the need for additional hardware modification. With its compact size, portability and rich features, ACR1251T enables you to fully enjoy the convenience of using NFC applications.

The ACR1251T is compatible with GoToTags desktop software and can be used for high-speed NFC tag encoding.


  • USB 2.0 Full Speed Interface
  • CCID Compliance
  • USB Firmware Upgradeability
  • 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, 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
  • Suports:
    • Android™ OS 3.1 and above

All specifications are subject to change without notice and may be inaccurate; always verify yourself.