Identify your MacBook Air model - Apple Support
AltStore for Mac OS High Sierra : r/AltStore
8 Fixes for macOS High Sierra Slow Issue (How to Avoid It)
Refurbished MacBook Air 13" Dual Core i5 1.7GHz MC965LL/A | Double Dex
Installing Mac OS High Sierra On Early 2011 Macbook Pro - YouTube
Which Apps Don't Work In MacOS High Sierra? | Macworld
Identify your MacBook Pro model - Apple Support
not able to update to macOS High Sierra 1… - Apple Community
Mid 2011 won't install high sierra, Can't… - Apple Community
macOS High Sierra Compatible Macs and System Requirements: EveryMac.com
Computers & Electronics :: Laptops :: Apple Laptops :: MacBook Pro :: 15 inch MacBook Pro :: Apple MacBook Pro (15-inch Early 2011) 2.2 GHz intel i7-2720QM 4GB 750GB HDD (Silver)
MacOS High Sierra Compatible Macs List | OSXDaily
Apple MacBook Pro 15-inch Early 2011 2GHz Intel Core i7 (MC721LL/A) – UNICOM, Inc.
Error while clean installing macOS High Sierra | MacRumors Forums
MAC Lion Upgrade - to High Sierra on MACBook Pro A1278 2011 - YouTube
macOS High Sierra now available as a free update - Apple
My “New” MacBook Pro mid 2015, reinstalling / formatting macOS Operating System High Sierra – DR KOH
Apple MacBook Pro 15-inch Early 2011 2GHz Intel Core i7 (MC721LL/A) – UNICOM, Inc.
