I have these memory modules, no way to test. 2 are Silicon Graphics branded, no visible part numbers. 6 are Kingston branded, pn KSG-02/64. I think these go to an SGI O2 machine? $5 each, take them all, plus $6 shipping. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2014.0.4259 / Virus Database: 3658/6961 - Release Date: 12/30/13