Identify your MacBook Air model - Apple Support (CA)
256GB 2.5 SSD | OS X El Capitan 10.11.6 Loaded | MACBOOK PRO 2009 2010 2011 2012 | eBay
Identify your MacBook Pro model - Apple Support (IE)
MacOS High Sierra Compatible Macs List | OSXDaily
MacBook 6,1 (13-Inch, Late 2009) - Full Information | iGotOffer
PSA: macOS Sierra drops support for many Macs from 2007, 2008, and 2009 | Ars Technica
The MacOS Sierra Compatibility List | OSXDaily
The macOS Sierra Compatibility List
macos - Mac Pro 4,1 (Early 2009) Sierra Compatibility? - Ask Different
2009 MacBook in 2023, But Everything Works (with El Capitan) - YouTube
macOS compatibility: What macOS versions can my Mac run? | Macworld
Replace OS on an older MacBook Pro - Apple Community
Apple macOS Sierra: how about that compatibility list? (2023)
Latest macOS compatibility chart : r/MacOS
Identify your iMac model - Apple Support
Replace your 2009-2012 MacBook Pro HD with an SSD
macOS compatibility: What macOS versions can my Mac run? | Macworld
Identify your MacBook Pro model - Apple Support
Need some help (Mid 2009 MacBook Pro) : r/mac
How do I update my MacBook Pro from snow … - Apple Community
Identify your MacBook Air model - Apple Support (CA)
Identify your iMac model – Apple Support (UK)
Unibody MacBook Pro Mac OS X and Windows Compatibility: EveryMac.com
How to Install macOS Sonoma on Unsupported Macs, for Security Improvements - The Mac Security Blog
