Amazon.com: Original Graphics Video Card for Apple iMac Core i7 2.8 27-Inch Late 2009 A1412 MC507LL/A MC507 Desktop Computer, AMD ATI Mobility Radeon HD 4850 GDDR3 512MB 109-B91157-00, GPU Upgrade Replacement : Electronics
OWC 8.0GB DDR3 ECC-R PC10600 1333MHz SDRAM Memory Upgrade Module Compatible with Mac Pro 2009-2012 (OWC1333D3MPE8GB) at Amazon.com
A-Tech for Apple 2GB DDR3 1067MHz / 1066MHz PC3-8500 SODIMM Memory RAM Module for MacBook, MacBook Pro, iMac, Mac Mini - (Late 2008, Early 2009, Mid 2009, Late 2009, Mid 2010) Models at Amazon.com
Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3L 1600MHz for Mac Book Pro( Early/Late 2011,Mid 2012), iMac(Mid 2011,Late 2012,Early/Late 2013,Late 2014,Mid 2015), Mac Mini(Mid 2011,Late 2012) MAC RAM at Amazon.com
NEMIX RAM 64GB 4X16GB Mac Pro 2009 2010 2012 Compatible Memory DDR3-1333 Upgrade Kit at Amazon.com
16GB (4GBx4) Team High Performance Memory RAM Upgrade For iMac “Core 2 Duo” 3.06 21.5-Inch (Late 2009) MB950LL/A iMac 10,1 1. The Memory Kit comes with Life Time Warranty. at Amazon.com
Amazon.com: OWC 2.0GB DDR3 ECC PC10600 1333MHz DIMM Memory Upgrade Module Compatible with Mac Pro 2009-2012 (OWC1333D3ECC2GB) : Everything Else
A-Tech for Apple 2GB DDR3 1067MHz / 1066MHz PC3-8500 SODIMM iMac (Early/Mid/Late 2009, 20/24 inch, 21.5/27 inch), Mac Mini (Early/Late 2009 Mid 2010) Memory RAM Upgrade Module at Amazon.com
Amazon.com: iFixit Power Supply Compatible with iMac Intel 21.5" (Late 2009- Mid 2011) : Electronics
Amazon.com: OWC in-Line Digital Thermal Sensor HDD Upgrade Cable for iMac 2009-2010, (OWCDIDIMACHDD09) : Electronics
Amazon.com: OWC 1.0TB 3G SSD and HDD DIY Complete Bundle Upgrade Kit for Late 2009-2010 iMacs, (OWCKITIM09HE1TB) : Electronics
Amazon.com: OWC General Servicing Kit Compatible With iMac 2007 and later Models, (OWCDIYIMACGEN) : Electronics
Amazon.com: OWC 2.0TB HDD Upgrade Kit Compatible With 2009-2010 iMacs, Includes: Thermal Sensor, Tools, 2.0TB Hard Drive : Electronics
Amazon.com: Odyson - Power Supply 205W Replacement for iMac 21.5" A1311 (Late 2009-Late 2011) : Electronics
A-Tech 8GB PC3-8500 DDR3 1066/1067 MHz RAM for MacBook (Mid 2010 13 inch), MacBook Pro (Mid 2010 13 inch), iMac (Late 2009 27 inch i5/i7), Mac Mini ( Mid 2010) | 204-Pin SODIMM Memory Upgrade Module at Amazon.com
A-Tech for Apple 4GB Kit (2X 2GB) DDR3 1067MHz / 1066MHz PC3-8500 SODIMM Memory RAM
A-Tech for Apple 8GB Kit (2X 4GB) DDR3 1067MHz / 1066MHz PC3-8500 SODIMM MacBook, MacBook Pro, iMac, Mac Mini (Late 2008 Early/Mid/Late 2009 Mid 2010) Memory RAM at Amazon.com
Amazon.com: OWC in-Line Digital Thermal Sensor HDD Upgrade Cable for iMac 2011, (OWCDIDIMACHDD11) : Electronics
Amazon.com: OWC 120GB 3G SSD and HDD DIY Complete Bundle Upgrade Kit for Late 2009-2010 iMacs, (OWCKITIM09HE120) : Electronics
Amazon.com: New Internal 2nd HDD SSD Caddy for Apple iMac Core 2 Duo MB952LL/A MB952 Late 2009 A1312 27" Computer SuperDrive Optical Bay Second Hard Drive Enclosure Replacement : Electronics
Timetec 16GB KIT(4x4GB) Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 CL7 Dual Rank for iMac (Late 2009 21.5-inch / 27-inch) SODIMM Memory MAC RAM Upgrade for iMac 10,1 and iMac 11,1 at Amazon.com