PXE-11S1
Expansion 1 x PCIe x16: x8 signal
4 x PCIe x4-
3 x PCIe (x4 signal)
1 x PCIe (x2 signal)
1 x PCIe x1
4 x PCI Slot
1 x M.2(NGFF): 1 x M.2 A key (2230)