what device do i need to load turbo tax on new macbook air

I take that back. Apparently they still distribute their software on CD. You need to purchase an optical drive for your Mac. Or return the CD and get the downloadable or online version.

It is not clear what you are asking. TurboTax requirements are detailed here: https://turbotax.intuit.com/

You can download or use the online version.

Any version of TurboTax that is on disk is most likely too old to run on a new Mac.