16GB Memory RAM for Asus KGPE-Series KGPE-D16 (ECC Reg) 240pin PC3-8500 1066MHz DDR3 ECC Registered RDIMM Black Diamond Memory Module Upgrade - Walmart.com
Amazon.com: OWC 16GB (2 x 8GB) PC8500 DDR3 ECC-R 1066MHz DIMMs Memory Compatible with Mac Pro Early 2009 & Late 2010 'Nehalem' & 'Westmere' Systems and Early 2009 Xserve. (OWC85MP3S8M16GK) : Everything Else