In a way, yes. At least if you are actually talking about storage space, not RAM.
If you did really mean to ask whether the RAM could be upgraded from the 2GB that your model has, the answer is a definitive "No."
For the storage space question: There is a MicroSD expansion slot under the kickstand. As I understand it, you could install a 64GB expansion card in that slot, thus massively increasing your maximum storage capacity.
You can learn more about adding an expansion card [http://www.lovemysurface.net/add-a-micro-sd-card-to-surface-tablets/|here.]