Microsoft Office 2021 Home and Business For 1 Mac - This Product Key will activate Office 2021 Home and Business on one Mac. - Traditionally the last 3 macOS versions are supported (at this moment Big Sur, Monterey, and Ventura), please make sure that your Mac will be able to run the software. In doubt? PM me, i will help :) - Microsoft Account required - you will need to redeem the key, and link it to your Microsoft account (so later you will be able to reinstall Office on your Mac, even after a major hardware change), before you download the software. - Multilingual Global version - This is a 100% genuine ESD key, originally was purchased to activate Office on refurbished Macs. I have a couple left, so if your Mac does not have Office, don't hesitate to contact us! :)