A:AnswerI have a similar HP desktop that came with an onboard video card. I had to buy a standalone video card to not only get this monitor hooked up but my second monitor as well. If you bought two of these monitors, look for a card with two HDMI inputs.
A:AnswerYes, you can mount on a third party mounting handle as long as it is VESA compatible. This monitor has a 100 mm mounting holes for flexible mounting solutions.
A:AnswerIf you are referring to a split-screen setup by connecting two different computers then that particular option is not available on this monitor.
A:AnswerThere are no suggested soundbars for this monitor. However, we suggest you contact the Geek Squad and they will be able to assist you further with this.