I was recommended this device as the best way to transfer files with my Amiga 500. I assume most of you agree, otherwise you would not be here

Anyway, I am slightly confused as to how I can get one of these - is it something that I have to make myself, something I buy from someone else who has made it, or is there an official website which sells these?
Ideally I would like one pre-made completely, as I do not own a soldering iron or have much knowledge of electronics.
Sorry for asking such a foolish question, and thanks in advance to anyone who can answer my question!
