The cables for the Light Gray Cased SDCard HxC?

[@dudeslife]

I want to buy the Light Gray Cased SDCard HxC but I have questions about the cables. I want to use it on multiple amigas (500/1000/2000).. Does it plug into the external floppy port? Or do I need to pull cables from inside of the case to power and run it? I am confused. Thanks for any help.

Regards.