Expansion Backplane, 5 PCIe x16 slots

PCIe x16 slot to be fully functional Ethernet Network Cards (NIC SATA expansion cards are available for PCIe x1, x4, and x8 slots

There are a number of simple ways to check for a PCIe x16 slot, though some may require you to open the machine up So you'll need some

pcie 4 m2 in pcie 3 slot PCIe expansion slots, including x4, x8, and x16 PCIe slots There are various peripheral cards you can use with PCIe x1 expansion slots

pcie2 slot Concept Product CP074-2 8 x NVMe SSD to PCIe x16 Mobile Rack Adapter Card for PCIe Expansion Slot with PCIe Bifurcation Function