Question 1

The title has 8gb ddr3 ram, under specifications it shows only 4gb. How much does it come with?

Accepted Answer

This certainly looks like the same computer that I purchased from Grace Technologies on March 28.  Mine came with 8GB.  Incidentally, I am well satisfied with it.  I recommend purchase.

Question 2

How many expansions are there for new drives?

Accepted Answer

I am not an expert on these things. Based on general principles and inspection of my T420, there are no internal expansion "slots" for additional drives. I imagine that the SSD within the unit can be swapped out for one of larger capacity, but I think that's it. There are three USB ports to which one can connect an external drive. I have a 1Gb HD connect to the unit in this manner; works fine. ...robert

Question 3

Is this model equipped with the 9-cell battery?

Accepted Answer

The battery in this T420 computer looks identical to the battery in the SL510 which I replaced. That was described as 10.8V Capacity : 4400 mAh.  I believe that was a 6 cell battery and, therefore the T420 is a 6 cell.  I cannot be positive.
Incidentally, it seems to last for about 6 hours when I am doing simple web surfing.  Other activities use more power.

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