16GB KIT (2 x 8GB) for Dell Studio Notebook Series XPS 16 (1640). SO-DIMM DDR3 Non-ECC PC3-8500 1066MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
Review Dell Studio XPS 16 Notebook - NotebookCheck.net Reviews
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2GB SNPH299FC/2G 204-Pin DDR3 So-dimm RAM| Memory for Dell