A:AnswerBoth are the same monitors and have no difference in the specifications. However, this https://bit.ly/2QQ6fHt is a open-Box unit and the other is brand new.
A:AnswerIf you do not have the required ports on the system to connect two monitors then you will need a docking station such as Dell D3100. Product link: https://bit.ly/3iumpDw