motherboard pci-express slots
PC/104 - Wikipedia
Under the general terms, PCI Express is used for the representation of the expansion slots on the motherboard of your computing device – whether PC or Laptop.
PCIe Network Card Guide - fs.com
Will this PCI express card … … fit into any of these slots. My motherboard offers: One PCI Express* x16 bus add-in card connector Two PCI Conventional* bus connectors.
What are PCIe Slots and Their Uses? - Beginners Guide
ECS A790GXM-AD3 motherboard comes with two x16 PCI Express 2.0 slots, two PCI Express x1 slots and two standard PCI slots.