pcie expansion cards

The pcie expansion cards tag on WindowsForum.com covers add-in cards that extend a computer's connectivity and storage options through PCIe slots. Recent discussions highlight products like the Lekuo SouthBridge Max, a card that uses an AMD B650-class controller to turn a single PCIe 4.0 x4 slot into multiple M.2 NVMe, SATA, and USB ports. A key theme is the distinction between port-density expansion and actual bandwidth increases, as all traffic shares the host link. The tag also addresses practical considerations for homelab and storage enthusiasts, including how these cards interact with motherboard BIOS and the trade-offs of using passive carrier cards versus active controllers.