A:Answeryes. With the micro SD slot you should be able to perform some file management operations. It is also capable of screen mirroring as well as connecting to a Chromecast (Google Photos app).
A:AnswerI'm not sure about the mini hdmi adapter (I haven't tried mine), but I have used screen mirroring for this device to a MS Screen Adapter plugged into a TV. I'm sure it would work with a Chromecast or Fire Stick as well.
A:AnswerIn my opinion yes yes and NO. When I turn it on it flashes INSIGNIA for at least 2 hours before it connects to wifi then continually freezes. Have to restart and wait 2 hours again. I returned the first one for doing this but the second one is just the same