Mysterious connectors on the next iPad Pro

What are these unidentified ports, which rumors claim to have seen, used on the next iPad Pro?

According to "reliable sources in China" of the Japanese site MacOtakara, the next iPad Pro 11'' and 12.9'' will have a chassis almost identical to that of the previous versions, with one difference: a new connector, placed on the top and bottom edges of the tablet.

4 pin connector on the next iPad Pro?

These connectors apparently have four pins, which is nothing that corresponds to what we already know: three pins for the Smart Connector (which allows you to connect accessories such as the Magic Keyboard) and five pins for the MagSafe 3 connector , used to charge Mac laptops.

Two 4-pin connectors on the next iPad Pro?

MacOtakara speculates that it might be a hookup to help power peripherals connected to the Thunderbolt port, but nothing of course. And above all, why are there two of these connectors on the tablet? Response in September or October, when the new iPad Pros are expected to be revealed.