From SCM Microsystems:

PKard ® for Mac replaces the native macOS PKI solution to provide users with a solid product with full, free, U.S. Based support. It is the same commercial code used by the Pentagon, all six DoD services, White House, NIH, and DOI across tens of thousands of Mac users since the mid-2000s. Installing the driver and updating the firmware on an SCR-331 USB CAC reader.

Update your SmartCardReader USB drivers for model SCR3310.

SCM's SCR3310 and SCR3310v2.0 are small and ergonomic USB smart card readers, with backside mounting holes. The readers are ISO 7816 compliant, and can be used for cards in ID 1 card format.

This installer contains PC/SC driver and CT-API library and can be used for SCR531 USB, SCR331 CCID, SCR333, SCR335, SCR355, SCR338, SCR3310, SCR3311, SCR3320, SCR3340, @MAXX Family and SCT3511

SCR331 and SCR531 users note that only readers that have CCID firmware are supported. Readers that have firmware Rev 2.0 and above are CCID. This driver may also be used with the following third party products: Goldtouch ErgoSecure SC 2.0 keyboard, Datakey DKR830. If the host is running Windows 98 SE or Windows Me, ensure that Microsoft Smart Card Base Components are installed on the host before atempting to install the drivers.

What do you need to know about free software?

Microsoft Windows:

Windows users should not need to install any drivers. Drivers self-install on all Windows platforms. These drivers are for rare use on legacy Windows platforms only.
Please contact us before using these drivers.

To determine if your reader has properly self-installed on a Windows workstation, go to Windows Device Manager (right-click on Computer (This PC in Windows 8/10), select Properties and select Device Manager).You should see a list of devices similar to the list below.There should be a category entitled Smart card readers and if you click on it, it should show a device named Microsoft Usbccid Smartcard Reader (WUDF) or similar.

Macintosh Installer (.pkg driver) for Mac OS X 10.7 or earlier
Mac OS Installer (.zip 6KB) (updated 7/29/11)
Note to Mac OS: No driver is required for SGT111-7, SGT111-8, SGT111-8c, SGT117XE-3, SGT117XE-4, SGT118-6, SGT118-6c, SGT119XM-4, SGTiall-2 and SGTiall-2c
OS X will self-install an EMV Smart Card reader driver automatically. To determine if these readers are properly installed go to:

 / About This Mac / System Report... / Hardware / USB. An 'EMV Smartcard Reader' device should be present.

Macintosh Installer for older SGT smart card readers (.dmg Disk Image File) for Mac OS X 10.8, 10.9, 10.10, 10.11, 10.12, 10.13 (Mountain Lion, Mavericks OS, Yosemite OS, El Capitan, Sierra. High Sierra)

Mac OS Installer (OS X Disk Image File 226KB) (updated 1/3/15)
For OS X versions 10.11 and newer. You may have to turn SIP off to install driver:
1. Boot into recovery mode (CMD+R) before Apple Icon shows up.
2. Open terminal from the menu -> utilities.
3. Run command csrutil disable.
4. Run command reboot to restart.
5. Install driver normally

DOD and US Govt Macintosh users please reference http://militarycac.com/apple.htm for additional install procedures

Linux Users:

SGT111/SGT114/SGT116/SGT117/SGT118/SGT119/SGT121/SGT122 Linux Driver (.bz2 78KB)
Also see: http://pcsclite.alioth.debian.org/ccid.html

Note to DOD CAC/PIV Users:

Iogear Gsr202 Cac Reader Driver For Mac

The above software and the software included on your CD is not required nor recommended for DOD CAC use. Consult your Command's IT Officer.

Android Users:

Scr 331 Cac Reader Driver Download

The SGT111-7, SGT111-8, SGT111-8c, SGT117XE-3, SGT117XE-4, SGT118-6, SGT118-6c, SGT119XM-4, SGTiall-2 and SGTiall-2c self-install and are compatible with Android versions 5 and newer. No drivers are required.

Cac Card Reader Driver For Mac

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