Answer:
PCIe is used for video card installation on Laptop.
Step-by-step explanation:
Good quality applications, videos and games required graphics card for better results. These card can be installed on laptops, that required some ports.
PCI-e is a slot, that is used in laptop for video or graphic card interface. Video card or graphic card is used to enable high quality video or graphics on Laptop.
PCI- E stand for Peripheral Component Interconnect Express. It work as serial communication interface for high speed device.