Here's a novel idea that Acer just hasn't seen fit to implement: How about providing complete specifications on the product webpage -and- in the user manual?
As an example of what they do not provide (but should):
What are the various resolutions and maximum refresh rates possible with an external HDMI connection?
You'd think it would be in the "Answers" up here but, nope, only an -opinion- by another user but, in that thread, -nothing- from an Acer employee who should know this. This is a shame, as I really like Acer products; the lack of information, however, makes it difficult to purchase more.