New Sony A7sIII accessories:
You will also have to preorder the world’s first CFexpress Type A cards at Adorama, BHphoto. Amazon.
And of course the new Sony MRW-G2 CFexpress Type A/SD Memory Card Reader at Adorama and BHphoto.
Matti Haapoja just posted the final and full review of the new A7sIII:
There is also a new Hands-on with the Sony a7S III at Dpreview.
And here is a In-Depth Look at the Data Rates: