Can I install PCIe x8 expansion card in a PCIe x4 slot on a QNAP NAS

PCIe x8 Gen3 pcie 8x slot ODD form factor · PCIe x16 Slot Supports 8-lane PCI Express Bandwidth · Two SFF-8643 Connectors · Power Input & Output pcie2 slot Riser with Three PCIe Gen3 slots 1 x16 FH 1 x8 FH and 1 x8 LP at least 2 processors R740XD CusKit The Riser from Dell™ fits into

pciex16 slot configuration You could have an efficient GPU in the laptop expansion board, plus connector to push out the 8x PCIe Then you could have the latest gen