128MB STICK For Sony Vaio PCG Series PCG-9251 PCG-9291 PCG-9292 PCG-92B1 PCG-9312 PCG-9316 PCG-931A PCG-9322 PCG-9326 PCG-932A PCG-9332 PCG-933A PCG-9401 PCG-9411 PCG-9415 PCG-941C PCG-945A PCG-9516 PCG-951G PCG-9526 PCG-952G PCG-9536 PCG-953G PCG-954A PCG-954C PCG-955 PCG-955A PCG-955C PCG-961A PCG-961C PCG-962A PCG-962C PCG-971M (FX405) PCG-972M (FX401) PCG-974L PCG-983L PCG-984L. SO-DIMM SD NON-ECC PC100 100MHz RAM Memory. Genuine A-Tech Brand. 128MB STICK SO-DIMM SD NON-ECC PC100 100MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Sony Vaio PCG Series. (See Compatibility List Below)