What is the purpose of express card slot in my laptop?

What does an ExpressCard34 slot do for a laptop and have a slot in The ExpressCard slot is to expand communication or add USB and more

Apiotek eSATA II 300 ExpressCard Adapter for NotebookLaptop Express Card Slot

slot game mobile malaysia The PCAN-miniPCIe card enables the connection of embedded PCs and laptops with PCI Express Mini slot रo 44, Ex Tax:रo 37,

slot gacor server amerika Adds USB Connectivity—Simple way to add two SuperSpeed USB ports to a MacBook Pro or PC notebook computer with ExpressCard34 slot · Super Fast USB