A:AnswerNo, it is landscape (horizontal) use only with the supplied base installed.
It does have VESA mounting threads on the rear side (100mm x 100 mm standard) so with a monitor arm that you would have to get separately it could then be used in portrait (vertical) orientation.
A:AnswerHi there. We sincerely apologize for your experience, and we would love to work with you to resolve this. Please email us at [email protected], by calling 888-842-3577.