ExpressCard | Apple Wiki
Yes, if your laptop has a PCI Express slot, you can upgrade components like graphics cards or SSDs to improve performance, depending on compatibility and space.
Solved: How many SSD slots are in the HP Victus 15 fa1319tx, and how... - HP Support Community - 9081660
I was thinking about getting the HP Victus 15 fa1319tx with 13th Gen i5 13420H, 6GB RTX 4050 GPU, 16GB DDR4, 512 GB SSD. I already have 1TB SSD and 16 GB RAM stick with me and would like to check if the laptop has 2 SSD Slots, and how much RAM is supported by each slot/total.
How Many M.2 Slots Do Motherboards Have? - PC Guide 101
How many SSD slots does the HP Envy x360 have? ... To know how many SSD slots your HP Envy x360 has, you can check that in the manual or ask HP consumer support.