New! 16GB 2 X 8GB DDR3 PC3-10600 SODIMM PC10600 1333MHz Laptop Memory RAM at Amazon.com
OWC 32GB (2 x 16GB) PC10600 DDR3 ECC-R 1333MHz DIMMs Memory Compatible with Mac Pro Early 2009 & Late 2010 'Nehalem' & 'Westmere' Systems and Early 2009 Xserve. at Amazon.com