Hi I am wondering what is the method of efficiently storing samples off an external hard drive through a USB hub?

Ideally I would like to keep my samples on the external to save room on my laptop, then I can just drag and drop in Logic X from my external folder into the project.

However my only concerns is speed, as I would have to use the USB hub for both my hard drive and my audio interface.

I am wondering what kind of hard drive is recommended? Does it need to be 3.0?

I have looked at a few models and am interested in an Anker.

https://www.amazon.ca/Anker-Charging-Adapter-Included-VL812-B2/dp/B014ZQ07NE/ref=sr_1_10?s=pc&ie=UTF8&qid=1460453652&sr=1-10

https://www.amazon.ca/Anker-Ultra-Slim-4-Port-Data/dp/B00Y24IL6K/ref=sr_1_1?s=pc&ie=UTF8&qid=1460453652&sr=1-1

First can someone confirm if the 1st is powered? I am willing to spend more for a powered one to ensure that there is no lag for my AI but if I don't need a powered one I will go with the 2nd model. I would be running my AI through the USB to power some Dynaudios and would have an external plugged in to grab samples from.

Will appreciate any help.