Sup guys, new acer owner here. Also a semi-laptop upgrading newbie.
Received my new Acer Nitro AN515-55-53AG yesterday, works like a charm. Want to add in an additional 8gb ram stick as well as an internal m.2 SSD.
Heres a picture of my mobo:

As you can see, it has an open slot for an additional Ram stick and SSD.
According to CPU-Z as well as my own eyes, the preinstalled ssd is an Western Digital PC SN530 NVme SSD:

The preinstalled ram stick is an SK
Hynix 8GB DDR4 PC4-25600 3200MHz 260-Pin CL22 1.2v:

I want to add in another ram stick as well as m.2 SSD. I want them to match almost exactly with the components I already have in my laptop, in order to prevent any future compatibility errors.
I found 2 places where the ram sticks appear to match. Can anyone confirm that they will be compatible with my system?
https://www.amazon.com/Hynix-PC4-25600-3200MHz-260-pin-SODIMM/dp/B0898NRLXR/ref=mp_s_a_1_30https://www.ebay.com/itm/SK-hynix-8GB-1Rx8-PC4-DDR4-2666-3200-MHz-Laptop-RAM-1-2V-
HMA81GS6CJR8N/274472061920?hash=item3fe7cf4be0:g:fNEAAOSwcqxfRWYP (3200 mhz model)
For the m.2 SSD, I have found a Western Digital PCie NVme ssd:
https://www.amazon.com/Blue-SN550-500GB-NVMe-Internal/dp/B07YFF3JCN/ref=mp_s_a_1_5?
dchild=1&keywords=western%2Bdigital%2Bpcie%2Bnvme%2Bssd&qid=1600012376&sr=8-5&th=1&psc=1Please confirm that this will be compatible with my system.

^^Open ssd slot
Thanks,