A:AnswerI personally find it better to add an extra hard drive externally. That way you’re not using extra space from the internal hard drive or system.
As for this model, I’m not sure about expansion space. I bought it as a gift for a friend.
A:AnswerMine did not come with any ram sticks but there are 2 USB ports in the front. You need to ask the Geek Squad about the hard drive. I got an external hard drive and connected it to a USB port in the back.