USB patched for older unsupported Macs like iMac 2014 or Macbook Pro 2012.Simply boot from the pre-configured 64GB USB 3.0 drive by holding down the option key⌥and you will be able install or upgrade to the latest version of MacOS Sonoma 14.4. Once upgrade you will be able to continue to apply the latest updates . The USB is reusable so you can upgrade all your Macs with one purchase.
Comes with full instructions.
To find your Mac's model go to the Apple Menu (top left) and About this Mac.
Please be sure to select the model you want to upgrade from the drop down list above:

• MacBook 12" Early-2016 (MacBook9,1)
• MacBook 12" Mid-2017 (MacBook10,1)
• MacBook Air 11" Mid-2012 (MacBookAir5,1)
• MacBook Air 13" Mid-2012 (MacBookAir5,2)
• MacBook Air 11" Mid-2013, (MacBookAir6,1)
• MacBook Air 13" Mid-2013, (MacBookAir6,2)
• MacBook Air 11" Early-2015, 2017 (MacBookAir7,1)
• MacBook Air 13" Early-2015, 2017 (MacBookAir7,2)
• MacBook Pro 15" Mid-2012 (MacBookPro9,1)
• MacBook Pro 13" Mid-2012 (MacBookPro9,2)
• MacBook Pro 15" Retina Mid-2012 (MacBookPro10,1)
• MacBook Pro 15" Early-2013 (MacBookPro10,1)
• MacBook Pro 13" Retina Early-2013 (MacBookPro10,2)
• MacBook Pro 13" Late-2013/Mid-2014 (MacBookPro11,1)
• MacBook Pro 15" 256GB HD Late-2013 (MacBookPro11,2)
• MacBook Pro 15" 256GB HD Mid-2014 (MacBookPro11,2)
• MacBook Pro 15" 512GB HD Pro 15" 512GB HD Pro 15" 256GB HD Mid-2015 (MacBookPro11,4)
• MacBook Pro 15" 512GB HD Mid-2015 (MacBookPro11,5)
• MacBook Pro 15" 1TB HD Mid-2015 (MacBookPro11,5)
• MacBook Pro 13" Early-2015 (MacBookPro12,1)
• MacBook Pro 13" Late-2016 (MacBookPro13,1)
• MacBook Pro 13" TouchBar Late-2016 (MacBookPro13,2)
• MacBook Pro 15" TouchBar Late-2016 (MacBookPro13,3)
• MacBook Pro 13" Mid-2017 (MacBookPro14,1)
• MacBook Pro 13" TouchBar Mid-2017 (MacBookPro14,2)
• MacBook Pro 15" TouchBar Mid-2017 (MacBookPro14,3)
• Mac Mini with 500GB HD Late-2012 (MacMini6,1)
• Mac Mini with 1TB HD Late-2012 (MacMini6,2)
• Mac Mini Late-2014 (MacMini7,1)
• iMac 21.5 Late-2012 (iMac13,1)
• iMac 27" Late-2012 (iMac13,2)
• iMac 21.5" Core i5 Late-2013 (iMac14,1)
• iMac 27" Late-2013 (iMac14,2)
• iMac 21.5" Core i7 Late-2013 (iMac14,3)
• iMac 21.5" Mid-2014 (iMac14,4)
• iMac 27" Retina 5K Late-2014/Mid-2015 (iMac15,1)
• iMac 21.5 Late-2015 (iMac16,1)
• iMac 21.5 Retina 4k Late-2015 (iMac16,2)
• iMac 27" Retina 5K Late-2015 (iMac17,1)
• iMac 27" Mid-2017 (iMac18,1)
• iMac 21.5" Retina 4k Mid-2017 (iMac18,2)
• iMac 27" Retina 5K Mid-2017 (iMac18,3)
• Mac Pro Mid-2012 (MacPro5,1)
• Mac Pro Late-2013 (MacPro6,1)

Above is a partial list of supported system the drop down only supports 50 entries.
The following older systems 2007-2011 can also be upgraded and will run smoothly, be stable and upgrade to latest point releases on Sonoama. But they are 10-15 years old and on the fringe of what is upgradable and may not be 100% and have various annoying niggles but more often then not they upgrade smoothly and get a new lease on life. What is there to loose?
Tip: If you are upgrading an older iMac/Mini/Pro (especially 2007-2011) please assume you will need a wired Apple USB keyboard and any old USB mouse to complete the process after which your wireless keyboard should work again. If you have a magic keyboard that plugs in to charge you are good to go. You can pick up an Apple Aluminum USB Keyboard for £10-20 and they are nice keyboards to boot.
For 2007-2011 Macs select "contact buyer" and include the entry below that corresponds to your Mac.

• MacBook 13-inch, Aluminum, Late 2008 (MacBook5,1)
• MacBook 13-inch, Early 2009 (MacBook5,2)
• MacBook 13-inch, Mid 2009 (MacBook5,2)
• MacBook 13-inch, Late 2009 (MacBook6,1)
• MacBook 13-inch, Mid 2010 )MacBook7,1)
• MacBook Air 13-inch, Late 2008 (MacBookAir2,1)
• MacBook Air 13-inch, Mid 2009 (MacBookAir2,1)
• MacBook Air 11-inch, Late 2010 (MacBookAir3,1)
• MacBook Air 13-inch, Late 2010 (MacBookAir3,2)
• MacBook Air 11-inch, Mid 2011 (MacBookAir4,1)
• MacBook Air 13-inch, Mid 2011 (MacBookAir4,2)
• Mac mini Early 2009 (Macmini3,1)
• Mac mini Mid 2010 (Macmini4,1)
• Mac mini Mid 2011 (Macmini5,1)
• MacBook Pro 15-inch, Early 2008 (MacBookPro4,1)
• MacBook Pro 17-inch, Early 2008 (MacBookPro4,1)
• MacBook Pro 15-inch, Late 2008 (MacBookPro5,1)
• MacBook Pro 17-inch, Early 2009 (MacBookPro5,1)
• MacBook Pro 17-inch, Mid 2009 (MacBookPro5,2)
• MacBook Pro 15-inch, Mid 2009 (MacBookPro5,3)
• MacBook Pro 13-inch, Mid 2009 (MacBookPro5,5)
• MacBook Pro 17-inch, Mid 2010 (MacBookPro6,1)
• MacBook Pro 15-inch, Mid 2010 (MacBookPro6,2)
• MacBook Pro 13-inch, Mid 2010 (MacBookPro7,1)
• MacBook Pro 13-inch, Early 2011 (MacBookPro8,1)
• MacBook Pro 13-inch, Late 2011 (MacBookPro8,1)
• MacBook Pro 15-inch, Early 2011 (MacBookPro8,2)
• MacBook Pro 15-inch, Late 2011 (MacBookPro8,2)
• MacBook Pro 17-inch, Early 2011 (MacBookPro8,3)
• iMac 20-inch, Early 2008 (iMac8,1)
• iMac 24-inch, Early 2008 (iMac8,1)
• iMac 20-inch, Early 2009 (iMac9,1)
• iMac 24-inch, Early 2009 (iMac9,1)
• iMac 20-inch, Mid 2009 (iMac9,1)
• iMac 21.5-inch, Late 2009 (iMac10,1)
• iMac 27-inch, Late 2009 (iMac10,1)
• iMac 27-inch, Late 2009 (iMac11,1)
• iMac 21.5-inch, Mid 2010 (iMac11,2)
• iMac 27-inch, Mid 2010 (iMac11,3)
• iMac 21.5-inch, Mid 2011 (iMac12,1)
• iMac 21.5-inch, Late 2011 (iMac12,1)
• iMac 27-inch, Mid 2011 (iMac12,2)
• Mac Pro Early 2009 (MacPro4,1)
• Mac Pro Mid 2010 (MacPro5,1)

Feel free to drop me a message with any questions or check out the OpenCoreLegacyProject (OCLP).
Good luck! :)