Apple Mac OS USB DDK 1.5.5f1 (Mac)

IMPORTANT NOTE: The enclosed software is for developmental purposes only. This release of software will support all iMacs, iBooks, PowerMacintosh and PowerBook systems with built-in USB. It will also support USB PCI and Cardbus cards from other vendors. CAREFULLY read the installation instructions detailed in the DDK Readme file. This software requires a modification as documented in the readme file. There are no step-by-step instructions provided to make this modification. This software is pre-release and not directly supported by Apple, nor is it intended for end-users.