Gilsson USB to Serial DB9 Adapter for Garmin Tested to work with Garmin GPS units Modular design; may also be used in conjunction with other PC, PDA or printer DB9 cables Fully molded from end to end for durability &amp; safety Professionally manufactured using the toughest UL-certified materials at ISO 9000/9001/9002 certified factories Compatible with Windows 98, 2000, ME, XP, Macintosh OS up through MacOS X, and Linux RedHat version 7.3, 8.0, and 9.0