ACS ACR1281U-C2 NFC Tag UID Reader

A black, USB connected, desktop NFC device to read an NFC tag's UID into a PC application without requiring software via HID keyboard emulation; supports Type 1 - 4 NFC tag types.
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Product Type Reader/Writer
Manufacturer Advanced Card Systems
Manufacturer Sku ACR1281U-C2ACSAB14 ACR1281U Mifare UID Reader
Country of Manufacture Hong Kong SAR China
Shipment Origin United States, Canada, Hong Kong SAR China
Harmonized Tariff Code 8471.60.90 (Input or Output Unit)
Availability Inventory
Lead Time Immediate
Minimum Order Quantity 1
Color Black
Dimensions 72.0 mm (L) x 120.5 mm (W) x 20.4 mm (H)
Tag Technology NFC
Frequency 13.56 MHz (NFC)
Compliance CE, FCC, RoHS 2
Connection USB 2.0 (Type A)
Features Buzzer, Firmware Upgradable, Lights, NFC
Power USB
NFC Mode Keyboard Emulation, UID Reader
NFC Standards ISO 14443 Type A, MIFARE, NFC Forum - Type 1, NFC Forum - Type 2, NFC Forum - Type 3, NFC Forum - Type 4
Operating System Linux, Windows
Operating Temperature 0° C to 50° C
Shelf Life 10+ Years @ 23° C, 50% RH
Weight (kg) 0.1400

ACR1281U-C2 Card UID Reader is a contactless card reader that automatically and efficiently gets the Unique Identifier number (UID) of any ISO 14443 Parts 1-4 Type A and B-compliant contactless card.

When presented with a contactless card (such as a MIFARE card), the ACR1281U-C2 retrieves the card’s UID and automatically returns it to the PC. The reader enables output of the UID directly to any editor, e.g. Notepad, MS Excel, MS Word, etc. With the UID, cardholders can be identified correctly in different applications, such as identity verification, time & attendance, and access control. ACR1281U-C2 also has an anti-collision feature that ensures only one card is accessed when multiple cards are presented simultaneously.

Because ACR1281U-C2 Card UID Reader is compliant with the Human Interface Device (HID) standard, it reduces driver installation issues during integration into PC environments. It can support most operating systems, including Microsoft® Windows, Linux and other embedded systems.

The ACR1281U-C2 only reads the NFC tag's UID, it can not read or write to user memory.


  • USB 2.0 Full Speed Interface
  • USB HID Keyboard Class
  • Contactless Card Support:
    • Read/write speed of 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 series
    • Built-in anti-collision feature (only one tag is accessed at any time)
  • USB Firmware Upgradability

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