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Mac OS CATALINA on a 2011 IMAC. I kept hearing it won't work because of the video card and would make my Mac unable to use but it is working for me.
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macOS Catalina, Big Sur, Monterey & Ventura Incompatible with Microsoft Office 2008 & Office 2011 - Charlotte Street Computers - Apple Authorized Service Provider
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Apple iMac 2011 A1312 MC813LL/A 27" i5-2500S 2.7GHz 16GB RAM 256GB SSD Catalina 885909500505 | eBay
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