1 additional PCI-Express x1 slot is needed

According to PCIE Expresscard , a x1 card can be inserted into the x4, x8, and x16 connectors 15 This is referred to as up

Part 1 of 4

pcie 4 nvme in pcie 3 slot 1x adapter PCI-E card can be inserted in any PCI-E Slot: 1x, 4x, 8x, or 16x; Support 2 port high speed PCIe 1X card; 1-slot PCI-E 1X to 2 slot 1X riser card

pci 4 ssd in pci 3 slot slot is Read in Detail What PCIe x1 Slots are Used For: ➤ motherboard