A:AnswerOn the ASUS website they say you can also use a stylus. I haven't been able to use a stylus on mine and have not received a response from the question I sent to ASUS regarding this.
A:AnswerYes, I use this with a second monitor. I have the HP 23" HD monitor and it works great. I work from home so a second monitor was a must. It was easy to hook up. The only thing I needed was an HDMI cable, change the display to EXTEND and done.
A:AnswerYes, the hard drive can be upgraded. I would recommend a certified technician to do this however because the system unit is somewhat challenging to open. I am a retired computer tech and it took me a bit to get the unit apart to sway out the stock hard drive with an SSD.