Manufacturer: SK Hynix Part Number: HMT125U6TFR8C-H9 Revision: 12366 Manufacturing Date: Year: 2010, Week: 43 Removed from a Dell XPS 8100 on January 27, 2021. CPU-Z and HWiNFO screenshots included in ad. To buy Crucial versions of these DIMMs would cost U$12.99 each, or 2 for U$25.99 (plus shipping) (see https://www.crucial.com/compatible-upgrade-for/dell/studio-xps-8100#memory). Will sell all 4 for $30, 2 for $16, or separately for $9 each. I remove my ads promptly after the product sells. If you are seeing this ad, it is because the item is still available.