8GB (4x2GB) DDR3-1333MHz PC3-10600 Non-ECC UDIMM 2Rx8 Desktop Memory Module by NEMIX RAM at Amazon.com
MemoryMasters 32GB KIT 4x8GB Single Rank (1RX4) 1333MHz DDR3 PC3-10600 ECC Registered CL9 240-Pin R-DIMM Reg Server Memory - Not for Desktop or laptops at Amazon.com