Amazon.com: OWC 48GB (6 x 8GB) PC8500 DDR3 ECC-R 1066MHz DIMMs for 8 Core or Better Mac Pro Early 2009 & Late 2010 'Nehalem' & 'Westmere' Systems & Early 2009 Xserve (OWC85MP3S8M48GK) : Everything Else
Amazon.com: OWC 8.0GB PC3-14900 DDR3 ECC 1866MHz 240 Pin Memory Upgrade Module Compatible with Mac Pro Late 2013 (OWC1866D3ECC08G) : Everything Else
DDR3 RAM】 Gigastone Desktop RAM 16GB (2x8GB) DDR3 16GB DDR3-1600MHz PC3-12800 CL11 1.5V 240 Pin Unbuffered Non ECC UDIMM for PC Computer Desktop Memory Module (Desktop ONLY) at Amazon.com
Amazon.com: OWC 128GB (4 x 32GB) PC10600 DDR3 ECC-R 1333MHz DIMMs Memory Compatible with Mac Pro Late 2013 Models (OWC1333D3Z3M128) : Everything Else
Amazon.com: OWC 32GB (4 x 8GB) PC14900 DDR3 ECC-R 1866MHz DIMMs Memory Compatible with Mac Pro Late 2013 Models (OWC1866D3R8M32) : Everything Else
OWC 24GB (3 x 8GB) PC8500 DDR3 ECC 1066MHz DIMMs Memory Compatible with Mac Pro Early 2009 & Late 2010 'Nehalem' & 'Westmere' Systems and Early 2009 Xserve (OWC85MP3W8M24K) at Amazon.com