The processor is used in mobile devices and even servers, and is a big upgrade from the 32-bit 900MHz Cortex-A7 on Pi 2. ADB stands for “Android Debug Bridge,” and it is a command line tool that is used to communicate. I found somewhere that if I want to take the most out of my machine (processor and memory) I should use the 64-bit version.

The actual transfer speed of USB 3.0, 3.1, 3.2, and/or Type-C will vary depending on many factors including the processing speed of the host device, file attributes and other factors related to system configuration and your operating environment.