What is Peripheral Component Interconnect Express (PCIe, PCI-E)? | Definition from TechTarget
PCI Express - Wikipedia
All Types Of PCIe Slots Explained & Compared
What Is PCI Express (PCIe)?
Introduction to PCI Express (withdrawn product) > Lenovo Press
What are PCIe Slots in PC? | HP® Tech Takes
Amazon.com: PCIe to PCI Adapter Card,PCI Express x1 to PCI Single/Double Converter,PCI-e Extender Card with USB3.0 Cable for Desktop Sound Card (PCIe to Single PCI Slot) : Electronics
File:Pci Express Slot.png - Wikimedia Commons
Computer Slot Types - Guide to identifying different PC Slots