CMS 32GB (8X4GB) DDR3 10600 1333MHZ ECC Registered DIMM Memory Ram Upgrade Compatible with IBM® System X3650 M2 4199, 7947 Ddr3-Pc1333 Ecc Reg for Server Only at Amazon.com
OWC 64.0GB (4X 16GB) PC10600 DDR3 ECC-Registered 1333MHz 240 Pin Memory Upgrade Compatible with Select 2009-2012 Mac Pro Models (OWC1333D3X9M064) at Amazon.com
682413-001 HP 4GB 2RX8 PC3-12800E DDR3 ECC Memory
16GB PC3-12800R (1600Mhz) ECC Registered Server Memory RAM – TechMikeNY
512GB (16 x 32GB) DDR3 PC3-10600 1333MHz ECC RDIMM Server RAM
Samsung 16GB DDR3-1600 ECC Registered Server Memory M393B2G70QH0-CK0 at Amazon.com