Product details
661-3931 Mac Pro 2-2.66-3GHz Quad - 3GHz 8-Core A1186 FB-Dimm, 2 GB, DDR2 667, ECC NB-2213W
This is 2GB DDR2 PC2-5300 RAM upgrade for the Mac Pro. This is for PC2-5300 DDR3 Machines. These are DIMM chips and not SODIMM chips used in MacBooks and iMacs.
Apple part number: 661-3931
Compatible models: A1186-2006-MA356LL/A, A1186-2006, A1186-2006
Compatible Mac info. : 2.66GHz Quad-Core Mac Pro , 3.0GHz Quad-Core Mac Pro , 3.0GHz 8-Core Mac Pro
661-3931 Mac Pro 2-2.66-3GHz Quad - 3GHz 8-Core A1186 FB-Dimm, 2 GB, DDR2 667, ECC
This is 2GB DDR2 PC2-5300 RAM upgrade for the Mac Pro. This is for PC2-5300 DDR3 Machines. These are DIMM chips and not SODIMM chips used in MacBooks and iMacs.
Apple part number: 661-3931
Compatible models: A1186-2006-MA356LL/A, A1186-2006, A1186-2006
Compatible Mac info. : 2.66GHz Quad-Core Mac Pro , 3.0GHz Quad-Core Mac Pro , 3.0GHz 8-Core Mac Pro
661-3931 Mac Pro 2-2.66-3GHz Quad - 3GHz 8-Core A1186 FB-Dimm, 2 GB, DDR2 667, ECC