Where can I find out what extras slots can be set for a laptop DELL G3-3579?

Question

laptops

Good afternoon, I have a DELL G3-3579 laptop
Service tag FFH6YQ2
Processor Intel (R) Core (TM) i7-8750H CPU @ 2.20GHz

There are 250ssd and 8GB of RAM

Question
1) What are the possible options to add another 250ssd? ( m2)
2) What are the options to add another 8gb ram?

That is, where can I find out what type and can I add it?

Answer 1

from official Dell technical support, no?

Answer 2

All documentation here:
https://www.dell.com/support/home/en-us/product-su...