The seller did a great job of posting the features.  It would benefit any buyers to consider the plug of their monitors.  Buyers might need to use adapters if using monitors with VGA plugs.  Thankfully someone in the questions directed me {after the purchase--my fault) to get a VGA to USB adapter for a monitor that has a VGA plug.  The seller posted all those specs, but it never occurred to me to check the plug on my monitor to look into what I would need.  Although there is no manual, again, the seller posted the information of what was being offered and I did still post two questions after it arrived (a day early) that were each answered in a timely fashion.  Great team work, I thought.  :)