I have a hp model 110-430 PC

[Alland205]

My computer doesn’t have a network card. Can you guys tell me the best wireless network card for this PC. I also need help to upgrade the memory card to 8gb

[Paul_Tikkanen]

Hi:

There are no internal expansion slots to add any kind of internal cards.

https://support.hp.com/us-en/document/c04411700

To add wireless networking capability to your PC, you would need to purchase an external dual band wireless AC adapter.

Memory:

You can install 2 x 4 GB of PC3L-1333 memory.  That is PC3L-10600 (1.35V) memory.

Your PC uses the same kind of memory used in notebook PC's.

This memory would probably work just fine for your PC...

https://www.newegg.com/Product/Product.aspx?Item=9SIAD8U8ER3458

There are dozens of models of external USB AC wifi adapters, so find the one that best meets your needs and budget.