This macOS Catalina USB Install Flash Drive will install a fresh copy of High Sierra on your Mac.

- Bootable USB
- New macOS Install
- No Internet Required for the Install
- Install Instructions included
See compatibility list for your Mac below :-

macOS Compatibilty List :

Sequoia

MacBook Pro 2018 and later
MacBook Air 2020 and later
iMac 2019 and later
iMac Pro 2017 and later
Mac Studio 2022
Mac Mini 2018 and later
Mac Pro 2019 and later

Sonoma

iMac 2019 and later
Mac Pro 2019 and later
iMac Pro 2017
Mac Studio 2022 and later
MacBook Air 2018 and later
Mac mini 2018 and later
MacBook Pro 2018 and later

Ventura

MacBook models from 2017 or later
MacBook Air models from 2018 or later
MacBook Pro models from 2017 or later
Mac mini models from 2018 or later
iMac models from 2017 or later
iMac Pro (all models)
Mac Pro models from 2019 or later
Mac Studio (all models)

Monterey

MacBook introduced in 2016 or later
MacBook Air introduced in 2015 or later
MacBook Pro introduced in 2015 or later
Mac mini introduced in 2014 or later
iMac introduced in late 2015 or later
iMac Pro introduced in 2017 or later
Mac Pro introduced in 2013 or later

Big Sur

MacBook (2015 or later)
MacBook Air (2013 or later)
MacBook Pro (Late 2013 or later)
Mac mini (2014 or later)
iMac (2014 or later)
iMac Pro (2017 or later)
Mac Pro (2013 or later)

Catalina

MacBook (Early 2015 or newer)
MacBook Air (Mid 2012 or newer)
MacBook Pro (Mid 2012 or newer)
Mac mini (Late 2012 or newer)
iMac (Late 2012 or newer)
iMac Pro (2017)
Mac Pro (Late 2013 or newer)

Mojave

MacBook (Early 2015 or newer)
MacBook Air (Mid 2012 or newer)
MacBook Pro (Mid 2012 or newer)
Mac mini (Late 2012 or newer)
iMac (Late 2012 or newer)
iMac Pro (2017)
Mac Pro (Late 2013 or newer)

High Sierra

iMac (Late 2009 or newer)
MacBook (Late 2009, or newer)
MacBook Pro (Mid 2010 or newer)
MacBook Air (Late 2010 or newer)
Mac mini (Mid 2010 or newer)
Mac Pro (Mid 2010 or newer)
iMac Pro (2017)

Sierra

MacBook (Late 2009 or newer)
MacBook Pro (Mid 2010 or newer)
MacBook Air (Late 2010 or newer)
Mac mini (Mid 2010 or newer)
iMac (Late 2009 or newer)
Mac Pro (Mid 2010 or newer)