- Rear: 4 x PCIe x16 slots (Gen5 x16 link, FH, FL) for dual-slot GPU cards or 8 x PCIe x16 slots (Gen5 x8 link, FH,FL) for single-slot GPU cards
- 1 x PCIe x16 slots (Gen5 x16 link, FH, HL)
- 1 x PCIe x16 slot (Gen5 x16/x8 link, FH, HL) or OCP socket option or M.2 riser module
- 1 x PCIe x8 slot (Gen5 x0/x8 link, LP, HL)
- Front: 1 x PCIe x8 slot (Gen5 x8 link, LP, HL) Only for SKU1