A:AnswerThis has an HDMI port so while you can plug the Roku in to the monitor, this monitor does not have built in speakers so you will not get audio.
A:AnswerI'm not certain if this is what you're asking, but there are 2 HDMI inputs and 1 VGA input on the monitor. Some models include audio jacks - mine does not.
A:AnswerYou can view the monitor products from our site here: https://www.acer.com/ac/en/US/content/models/monitors. You can select the filters you want on the left side of the page, including the Interfaces/Ports. Hope this is helpful!