This operating system has exactly met all requirements and fulfilled all declared properties. :) If you're looking to upgrade, not only will you get a working version of Big Sur with this OS disk, but you can also get Apple's latest OS, all included in the price and features of this excellent product! I recommend a high-bandwidth, broadband internet connection for the upgrade, but if you wish to upgrade to the latest version of macOS, this is provided as a FREE option for you to opt into if you wish. Great range of options and features for the price! Hooray! I highly recommend this product if you are looking for an operating system for your Mac or a macOS compatible device!
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