A:AnswerHad the same problem with my first one: keyboard and mouse would not work. Replacement worked fine, but I immediately replaced it with a Logitech unit which continues to work fine.
A:AnswerIntegrated Intel HD Graphics 630
Out of the box it has 2 HDMI ports for two HDMI capable monitors.
If you have older monitors and are looking to be backwards compatible, get something else.
If you have newer HDMI capable monitors - you can't beat this for normal office or home use.
If you want to do some heavy gaming, you will have to add a heavy duty graphics card.