Question 1

Can it connect wirelessly to WiFi?

Accepted Answer

I'll take a stab, even though I may not know what I'm taking about.  My guess is no.  Not without a WiFi adapter, which are pretty inexpensive.  I do not believe that this desktop has a builtin WiFi adapter, and a quick look at the spec seems to confirm that.  So buy a WiFi adapter (a reall good one is $45 but many are $15!) and plug it into a USB port.

Question 2

Does this Pc come with sd or tf slots?

Accepted Answer

It does not have a SD slot.

Question 3

I have few question about this products: (1) Can you upgrade the RAM from 8 to 16 GB (2) I want to connect multiple monitors ( Extend the display, to view different contents at a time), so can you please add an another VGA/DVI  port ?

Accepted Answer

You can upgrade the ram & buy a video Card to upgrade to extend the display.

Questions & Answers