Plug the OMNIKEY CardMan 3x21 into a free USB port. Supported Operating Systems: - This driver supports the operating systems Windows 2000 Windows XP Windows Server 2003 Windows Vista Windows Server 2008 Windows 7 II. Cherry Smart Card Reader St 1044u Driver For Macbook Pro PC/SC driver (V1.2.1.2 - Release: 06/24/09 - Windows 2000 / XP / Vista / Server 2k3 / Windows 7 / Server 2k8 - digitally signed for Windows 2000 / XP / Vista / Windows 7, CCID compliant) README.TXT File README file for OMNIKEY CardMan 3x21, Version 1.2.1.2 This document describes the release notes of the OMNIKEY CardMan 3x21 Driver I. Driver SmartBoard USB for Linux PC/SC - USB driver (CardMan3121) for Linux Installation instructions for the OMNIKEY CardMan CCID Smartcard reader series.