The product is a rare upgrade version of Microsoft Office Professional Edition for Mac 2004 with a product key. It is designed for Apple Mac OS X 10.3, Panther, 10.2, Jaguar, and 10.4, Tiger operating systems. The upgrade version requires a minimum of 256 MB of RAM, 1 GHz processor speed, and 630 MB of hard drive space. The software is offered in English language on a CD format and is compatible with a G3/4 processor. This product provides a comprehensive office software suite for professional users on the Mac platform.