Well let's take this hub as an example:
https://www.amazon.com/Anker-PowerIQ-Charging-Macbook-Surface/dp/B00VDVCQ84/ref=sr_1_1?ie=UTF8&qid=1498591290&sr=8-1&keywords=anker+10+ports+hub

It says that it can support up to 5/Gbps, and the r/w speed of the hard drive that I'm testing on is around 100~160mbps, theoretically speaking it should easily be able to support 10 hard drives.

or I'm simply missing something here :/

Hello everyone!

I have two questions to ask:

1- I'm confused between 3 hard drives; WD my passport 4TB, WD mybook 4TB, and WD mybook 8TB
(overall they all almost cost the same ($/per GB) in my country)

2- If I connected 10 hard drives into a single usb hub would it affect the mining performance.

~Any comment is appreciated~