What is the best flash drive for iPhone for copying all kinds of files?

Question

iOS

The tasks are varied, from copying documents sent to the mail or messenger from an iPhone to a computer, printing them, to watching movies of any format. Those. a kind of combine, but with an emphasis on copying files between a computer and an iPhone.
Cloud solutions are not suitable.
WiFi solutions are also not suitable.

Answer 1

https://www.macworld.co.uk/feature/iphone/best-ext...
Personally, I like Wireless solutions, but only if it's not about transferring sensitive data.