A:AnswerThere is a 2.5" slot to add a hard drive, yes. Please note the bottom case assembly and battery must be removed to access. Yes, this laptop also has Ethernet as well as wifi.
A:AnswerThe easiest way is to go to this link: https://www.acer.com/ac/en/US/content/models/laptops and on the right side of the page select optical drive for a filter.