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
OWC 32.0GB (4X 8GB) DDR3 ECC-R PC10600 1333MHz SDRAM ECC Compatible with Mac Pro (OWC1333D3X8M32K) at Amazon.com
Samsung 8GB PC3-10600 DDR3-1333MHz ECC Registered CL9 240-Pin DIMM Dua – Mega Micro Devices Inc.
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
Kingston ValueRAM 8GB DDR3 1333MHz ECC Registered DIMM Desktop Server QR Memory KVR1333D3Q8R9S/8G at Amazon.com