I have two of these cables. It can‘t be USB 3.x because the hardware for USB Super Speed needs 2 additional data channel pairs (9 total). Moreover, USB 3 would only work from USB-C to USB-C as neither the Micro USB nor the lightning plug used support USB C. This cable is primarily made for charging. See https://en.m.wikipedia.org/wiki/USB_hardware#Pinouts https://rollingsquare.com/collections/incharge-xl/products/xls?variant=39894226567230

The cable itself is an adapter. The cable offers various connections (as stated in the product description).

Hi there. It's just that the 1.5 metre was enough for me, and I didn't see any point in paying more. So yes, the micro usb may be fragile, but at the same time it's a cable that replaces 6, so it's worth paying attention to it.

I can charge my MacBook with this one (X Max). I can't do that with the 6 Max.

Probably the best charging and data cable there is, very good quality and fast - I can't say in detail how fast. Only with the USB-Micro you have to pay attention to the direction of the plug, with the predecessor this was also the case with the Lighting.

No, this will not work, you need a voltage converter. You can then plug the charger into this converter (wall socket). Like this for example: GreenCell Car Voltage Converter 12V to 230V 300W 600W

No, you can read about it in the specifications. (USB 2.0) Can you tell me for what or which application you need a data rate of 10 Gbits/s?