The product is a Microsoft Windows 98 SE Second Edition Upgrade CD-ROM, which is a new, factory sealed operating system designed for upgrading to Microsoft Windows 98 from 3.1 or 95. With a minimum requirement of 64 MB of RAM and 200 MB of hard drive space, this CD-ROM is compatible with a processor speed of 66 MHz or higher. The English language CD comes with a standard license category and is ideal for a single device. Made by Microsoft in the United States, this CD-ROM provides the necessary software for upgrading your operating system.