This is a unique collector O2 with translucent skins and the latest PMC-Sierra RM7000A CPU that runs at 350MHz.
The translucent skins were prototypes made before the original blue color was selected, there were only a few made and that was before the i-mac. The only plastic part that is not translucent is the scalp which is light grey (also a prototype) and somebody placed a "pentium III" label on there as a joke (it could be removed easily)
On the inside this computer is practically an O2+ (latest model SGI released in August 2001). It has the PMC-Sierra RM7000A 350MHz CPU with 256 L2 cache and 1MB L3 cache. The computer is loaded with the maximal 1024MB of RAM which allows up to 900Mb of allocated texture memory. The system has an Audio/Video board installed that lets you input and output analog audio or video, including with the O2 camera (included). The optional Flat Panel adapter is installed in the system, so you can hook up an 1600SW flat panel to it "without" a multilink adapter. And the system comes with two 4GB hard drives.