This listing is for a brand new, sealed copy of Oracle Sun Microsystems Solaris 9 Operating Environment SPARC OS. It is an operating system in CD and DVD format that requires a minimum of 64 MB RAM and 600 MB of hard drive space for desktops and 1 GB for servers. This operating system is specifically designed for Sun Computer Systems and is compatible with Solaris operating systems. The model number for this product is Solaris 9.