It seems that there is a little confusion here. The SLGU9 code refers to an Intel® Pentium® Processor for Desktop E6300. While there is another processor with a similar model number, the Intel® Core™2 Duo Desktop Processor E6300 with two different revisions, SL9SA and SL9TA.
The ARK web site (ark.intel.com) only provides information on the latest revision of the Intel® Core™2 Duo Desktop Processor E6300, the revision SL9TA. That is why when you search for SL9SA there are no results based on this criteria.