This ScanGear CS Scanner Driver is compatible with existing iMac, G3,G4 & Apple's latest G5 systems equipped with built-in USB 1.1 or 2.0 ports. The ScanGear CS v7.1.3.3X Scanner Driver is for the CanoScan LiDE 50 scanners running on Mac OS X v10.1.3 or higher in "Native Mode" using CanoScan Toolbox v4.1.2.1X (CanoScanToolbox4121X.app.sit). This self-extracting scanner driver installer assists the user with a guided installation procedure through an intuitive interface.