Catalina 10.15.3 running decent on my mid 2009 iMac. Gonna max out the RAM to 8GB. 🤗 : r/CatalinaPatcher
Apogee Products and macOS Catalina Compatibility Information - Apogee Electronics
How To Install macOS Monterey Or Big Sur On An unsupported Mac | Macworld
Using an iMac as a Monitor Is More Complicated Than You Might Think
iMac 21.5” Late 2009 Catalina 8GB RAM 256GB SSD- BEST OFFER for Sale in Katy, TX - OfferUp
Mac OS Catalina en un Mac no compatible: Guía de instalación - Flopy.es
How to install Mac OS Catalina in a unsupported IMac 2009 A1225 - YouTube
Apps That Won't Work In macOS Catalina | Macworld
Installing 4 recent versions of macOS on unsupported Macs – Best Mac Tips
macOS Catalina Patcher
iMac 10,1 27 inch Late 2009 3.06 GHz - Desktop Computers - Germantown, Maryland | Facebook Marketplace | Facebook
Install MacOS Catalina on old Mac Mini 2009 2010 2011 and unsupported Mac - YouTube
Identify your iMac model - Apple Support
Recently acquired $120 Late 2009 i5 iMac 27" to study/code, 24GB RAM / 512GB SSD later, I'm blown away with performance with Catalina Patcher on. : r/mac
How to Install macOS Ventura or Monterey on Unsupported Macs, for Security Improvements - The Mac Security Blog
How to Install MacOS Catalina on Unsupported Macs | OSXDaily
How to install macOS or OS X on a new hard drive for your Mac
