OWC 64GB (4 x 16GB) PC10600 DDR3 ECC-R 1333MHz DIMMs Memory Compatible with Mac Pro Early 2009 & Late 2010 'Nehalem' & 'Westmere' Systems and Early 2009 Xserve. (OWC85MP3S9M064K) at Amazon.com
HYNIX HMT125U7BFR8C-H9 2GB DDR3 PC10600 240P DIMM at Amazon.com
SAMSUNG M393B1K70BH1-CH9 8GB DDR3 PC10600 240P DIMM at Amazon.com
OWC 16.0GB (2X 8GB) DDR3 ECC-R PC10600 1333MHz SDRAM Memory Compatible with Mac Pro 2009-2012 'Nehalem' & 'Westmere' (OWC1333D3X8M16K) at Amazon.com
ELPIDA EBJ10UE8BDF0-DJ-F 1GB DDR3 PC10600 240P DIMM at Amazon.com
48GB (3X 16GB) Matched Pair 1333MHz 240-Pin SDRAM DIMM DDR3 (PC10600) Memory Upgrade Kit for PC Desktops, Mac Pro 'Nehalem' & 'Westmere' (OWC1333D3X9M048) at Amazon.com
48GB (3X 16GB) Matched Pair 1333MHz 240-Pin SDRAM DIMM DDR3 (PC10600) Memory Upgrade Kit for PC Desktops, Mac Pro 'Nehalem' & 'Westmere' (OWC1333D3X9M048) at Amazon.com