PCIe expansion cards can add supported functions to a compatible desktop computer through its motherboard's PCI Express slots. When choosing an expansion card, match its requirements to your motherboard, case and operating system.
Check compatibility before choosing a PCIe card
- Slot and lane requirements: Check the card's required slot size, PCIe generation and electrical lane configuration against your motherboard documentation.
- Case fit: Confirm card dimensions, available expansion space and whether your case requires a full-height or low-profile bracket.
- Drivers and software: Review support for your operating system and any required driver or firmware installation.
- Power and internal connections: Check whether the card needs additional power, internal headers or cables, and confirm these are available in your system.
- Connected devices: Match the card's supported interfaces and features to the devices or components you intend to use.
PCIe and legacy PCI are different interfaces. Consult the exact card specifications and your system documentation before purchasing.
