You can have the key registered to two machines, allowing you to chop and change between a laptop and an edit suite etc. BlackMagic have thought about this with the Activation key though. The dongle could be the most convenient, if you will need to work on multiple machines, as you can simply take it with you wherever you go and plug it into any number of machines with Resolve Studio installed.

The Activation Key can still be suitable in such an environment, which I cover in next section. Updating to new versions of resolve will still require a temporary connection to the internet or for the software to be transferred from a portable hard drive. The dongle gives you the ability to move your license around multiple machines, provided they have Davinci Resolve Studio installed. The dongle version can be the only option for many high profile productions which are likely to have security measures requiring an ‘air gap’ to be maintained, at all times, between footage and any connection to the internet. – Flip between two devices without needing to take a dongle with you.

Davinci resolve license comparison