The slots on your PC's motherboard adhere to either the PCIe or PCI standard. Most recent motherboards have PCIe slots for PCIe cards. You can know your device's PCIe lanes in the following ways:
- By checking the Specification Sheet of the device, and looking under the Bus Interface section.
- By checking the connector size of the card in its product page.
For example, the PCIe-6509 showcases an x1 connector form factor.
Ensure the number of PCIe lanes used by the PCIe device is less than or equal to that supported by the PCIe slot on your motherboard. For example, a device requiring a single PCIe lane is denoted x1 PCIe. This will work on a motherboard PCIe slot that is denoted x1, x4, x8 or x16. The device specification sheet for the PCIe device also includes a Bus Interface section, which will go over slot compatibility.
PCIe cards are not compatible with the older PCI slot standard. The PCI physical slot will not allow for the insertion of the PCIe card.