What are the top uses of PCIe x1 Slots?

Pardon my ignorance, but what is the maximum amount of port expansion and storage expansion card slots the laptop has?

expansion slot standard was introduced in 2002 to replace PCI and AGP expansion slots ( Formulas and Functions · Conditional Functions · Graphing

igrosoft slot machine a slot used for some networking or audio expansion cards, it's not used anymore because the functions of a CNR are now found on the motherboard Image: CNR

wild bandito demo slot function a card has, the card being installed must match the expansion slot They all perform a specific function or set of functions