Apple MacBook A1342 Late 2009 C2D 2.26GHz 4GB 120GB SSD DVD-RW macOS 10.13 High Sierra – Refresh Computers Online Marketplace
Install Sierra on Early 2009 Mac Pro - Apple Community
Identify your MacBook Pro model - Apple Support
macOS 10.12 Sierra Unsupported Macs Thread | MacRumors Forums
Macs Able to Run macOS Sierra Remain Compatible With High Sierra - MacRumors
How to install macOS 10.12 Sierra on unsupported Mac hardware
Siri, Apple Watch unlocking, and more comes with macOS Sierra on Sept 20th | Ars Technica
Installing MacOS Sierra on an unsupported Mac (2009 MacBook Pro 5,4) - YouTube
Preparing a 2009 MacBook for macOS Sierra - YouTube
macOS Sierra: macOS Sierra: Frequently Asked Questions
macOS Sierra | Low End Mac
:max_bytes(150000):strip_icc()/DefaultDesktopSierra-577e96125f9b5858751c6d42.jpg "The Minimum Requirements for Running macOS Sierra")
The Minimum Requirements for Running macOS Sierra
How well does MacOS High Sierra run on an unsupported Mac? - YouTube
macOS Sierra Download Released, Get it Now | OSXDaily
macOS High Sierra (10.13) Unsupported Macs Thread | MacRumors Forums
Amazon.com: 6-in-1 USB Installer for MacOS. El Capitan High Sierra Mojave Catalina Big Sur and Monterey : Everything Else
System Requirements for macOS Sierra
The MacOS Sierra Compatibility List | OSXDaily
How to Install macOS High Sierra on an Unsupported Mac - YouTube
PSA: macOS Sierra drops support for many Macs from 2007, 2008, and 2009 | Ars Technica
macos - Mac Pro 4,1 (Early 2009) Sierra Compatibility? - Ask Different
The MacOS Sierra Compatibility List | OSXDaily
macOS Sierra: The smart person's guide | TechRepublic
MacOS Sierra review: Six big ways it's going to change your Apple experience - CNET
