Catalina 10.15.3 running decent on my mid 2009 iMac. Gonna max out the RAM to 8GB. 🤗 : r/CatalinaPatcher
Can my 21.5-inch, Late 2009 iMac with Cor… - Apple Community
ssd - What are my hardware upgrade options for a late 2009 iMac? - Ask Different
OCLP running Sonoma on iMac 27 includes late 2009 aka iMac 10,1 with new cheap SSD : r/OpenCoreLegacyPatcher
iMac 24" 2.93GHz (Early 2009) | mac of all trades
Apple iMac 27" - Late 2009 Reviews, Pros and Cons | TechSpot
Got a iMac Late 2009 model A1311 for a very good price, made a bootable USB drive for El Capitan and this shows up. any ideas? All help is appreciated : r/osx
Just Restored this dead 2009 Imac back to life with some updated hardware. : r/mac
Timetec 8GB Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 for Mac Book (Mid 2010 13-inch), Mac Book Pro (Mid 2010 13-inch), iMac (Late 2009 27-inch), Mac Mini (Mid 2010) SODIMM MAC