OWC 6GB (2GB + 4GB) PC8500 DDR3 1066MHz SO-DIMMs Memory Compatible with Late 2008, Early 2009, Early 2010 MacBook, MacBook Pro Unibody Models, 2009/2010 Mac Mini, 2009 iMac Models at Amazon.com
Apple Mac Pro 2009 UPGRADED 8-Core 128GB RAM SSD 2TB ATI 5770 WIFI OS High Sierr | eBay
Apple 2009 Mac Pro 5,1 Quad Core 2.66 16GB RAM 640GB HDD NVIDIA GeForce GT120 | eBay
Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 RAM for Mac Book (
2009 Mac Pro (Dual 2.66GHz/ATI 4870/6GB RAM/640GB HD) Review and Info
Memory Upgrade for Mac Pro (2009) - 16GB Upgrade - YouTube
NEMIX RAM 128GB 8X16GB Mac Pro 2009 2010 2012 Compatible Memory DDR3-1333 Upgrade Kit at Amazon.com
64GB (4x16GB) Memory Ram Upgrade For Apple Mac Pro 4.1 2009 8-Core All CPUs | eBay
32GB Memory Kit for 2009 - 2010 Apple Mac Pro Tower
How to Upgrade Mac Pro Memory (Early 2008/MacPro3,1): EveryMac.com
Mac Pro 2009 2010 - 2012 RAM 1333MHz 8GB/16GB Upgrade Kits 32GB 64GB 96GB 128GB | eBay
Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 RAM for Mac Book (
Memory Upgrades for 2009 Apple Mac Pro from OWC
Amazon.com: OWC 16GB (2 X 8GB) DDR3 1333MHz 240-pin DIMM ECC Memory Compatible with Mac Pro 2009-2012 'Nehalem' & 'Westmere' Models (OWC1333D3W8M16K) : Everything Else