computer -- usb/multiport/hdd case/usb thoughts

[bruce]

Hi.

Looking for input from the diy/hobbyists in lvl1.

I'm considering a project where I have a:

laptop
has a "usb coonection/port" requires the female usb connection on
the usb cable

the usb cable would connect to the usb multiport device (ac/dc) power adapter
usb multiport device required to extend/allow multiple usb devices

for usb multiport device
what usb cables would be required?
is usb 3/2 better? I've seen sites with diff information, but
thought I'd post here as well. so thanks.

the multiport usb device would also have "multiple" extern 2.5" hdd
usb case for 2.5" 1tb hdd.
has anyone used these devices/cases, any suggestions on the usb
cable to connect with the case and multiport device. (amazon pics
imply the devices come with their own cable, but I can't be sure)

My basic question(s) get to what type of usb cables I should get 2/3,
as well as A/B/C for the complete cable and the endpoints.

thanks.