When A2X pulls information from Amazon, you will see a Settlement containing a consolidation of sales and fees for a given settlement period, as in the screenshot below. (You won't see individual orders in these consolidation summaries.)
Here is a screenshot of a Settlement:
The intention of an A2X import into your accounting software is to give you the basic information you need in a format that is easy to find, read, and understand. (It purposefully keeps the management of individual orders inside Amazon Sellers).
Amazon Deposits usually arrive a few days after the close of the Settlement. A2X makes it easier to account for and reconcile the imported Settlement .
Summaries are only available in Amazon Seller Central. They look a little like A2X settlements in that they are consolidations. However, they cover a whole month and they don't reconcile with Amazon deposits.