32GB (4x8GB) DDR3 1333MHz ECC PC RAM | Integral Memory
A-Tech 8GB Kit (2X 4GB) DDR3 1333MHz PC3-10600E 2Rx8 240-pin ECC-Unbuffered DIMM for HP Workstation Z200 and Z400 – Server Memory Ram Modules at Amazon.com
CMS 12GB (3x4GB) DDR3 10600 1333MHZ ECC NON REGISTERED DIMM Memory Ram Upgrade Compatible with HP/Compaq® Workstation Z600 B3 SERIES DDR3 ECC For Server Only - B81 - Newegg.com
Crucial 4GB DDR3 1333MHz PC3-10600 ECC Unbuffered CL9 240p DIMM OEM Server Memory CTPRE4GBE3S139C - Star Micro Inc
2X 4GB 2RX8 PC3-10600E 1.5V DDR3 1333MHz ECC Memory RAM Unbuffered for Server Workstation(4G) - Walmart.com
OWC 32.0GB (4X 8GB) DDR3 ECC-R PC10600 1333MHz SDRAM ECC Compatible with Mac Pro (OWC1333D3X8M32K) at Amazon.com
Server Memory 16GB DDR3 1333MHz 1600 ECC REG 4G 8GB 2Rx4 PC3-12800R 14900 Register RDIMM RAM for for X58 X79 Motherboard - AliExpress
Samsung 16GB PC3-10600 DDR3-1333MHz ECC Registered DIMM Rank4 OEM Server Memory M393B2K70DMB-YH908 - Star Micro Inc