Question 1

does this computer have the ability to add another sata harddrive?

Accepted Answer

Wayne, I'm sorry but I have not checked inside to confirm that there is space  and that the necessary connectors are there.  It has a large case so I assume it can handle another drive but again, I have not been inside.  It has plenty of USB ports and so far the computer has been very satisfactory.
Good luck!
Charles

Question 2

Are slots available to add more DDR4 memory?

Accepted Answer

There are only two. But you can add a duplex rail.

Question 3

Is this computer capable of running dual monitors?  Thank you for being so sweet and answering my question.  Muah!

Accepted Answer

Yes it will. 
It is a basic machine though.  Don't try gaming.  But it will run 2 monitors.  1 vga and 1 hdmi

Question 4

What is the wattage of the power supply?

Accepted Answer

The power supply reads:
100-240V
3A
50/60 HZ

So if I'm calculating this correctly it's between 300 and 720 Watts depending on the outlet.  In the US with a 120 V outlet it puts out 360 Watts.

Questions & Answers