So you might as well put those extra PCIe lanes to good use and add a few more SATA ports for a new HDD or SSD to be installed. If you use M.2 drives, then you can buy an M.2 expansion card instead, ...

Thanks to an impressive five PCIe ... expansion cards. That brings us to our next point. The Z890-Pro Wi-Fi features an impressive five PCIe slots. The primary slot supports PCIe 5.0 x16 devices ...