Questions?  We have answers.

If you have purchased the AvidCard CAC USB Smart Card Reader with TYPE C connector and are having difficulty, please follow these directions starting on Step 1.

All other users can start on the CAC Reader Support section. 

Step 1: Download the  MacOS driver with AvidCard support.
Step 2: Install the scmccid_5_0_39_release_signed.pkg provided in the zip file.
Step 3: Plug in the reader.
Step 4: Verify the reader's installed correctly by reviewing these stepsCan your Mac "see" the reader?
Step 5: Purchase and install thePKard software from our middleware provider (NOT NEEDED for MacOS Catalina).

For Mac OS Catalina and Above - AvidCard CAC USB-C Quickstart Guide

Video: How to Download AvidCard CAC USB-C Driver 


CAC Reader Support


If you are experiencing difficulties installing a CAC reader, or the required software, please consult the information below.

1. Make sure your middleware is installed.

2. Ensure CAC reader is plugged in.

3. Reboot your system.


Thursby PKard™ for Mac

Thursby PKard

(this product sends two email receipts)

  1. Email containing links (use this one for downloading your software)
  2. Email containing codes (have this one handy for installation procedure)


  • Click download

Step 2: SAVE

  • Depending on which browser you have set to Default, the file should begin downloading automatically
  • By default, the file will automatically be saved in your computer's "Downloads" folder
  • Navigate to the Downloads folder by opening Finder and clicking Downloads (usually in the left-hand panel)
  • Once open you will see a file named "pkard(some number).dmg"


  • (Left) Double click on the file to launch it, Mac OS will automatically decompress it

Thursby suppport: (817) 478-5070 or

NOTE: If you are experiencing problems with your CAC reader, please visit our CAC Support page.

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