Buy Pi+® PCI-E x1 to NVMe SSD Expansion Card

The slot 4 is the PCIe X1 slot; it is the correct slot where you can fix the PCIe X1 cards

PCIe cards can always operate in PCIe slots with the same or more lanes than the card For example, an x8 card can operate in a slot with x8, x16, or x32 lanes

pcle x16 slot If you use a PCIe x1 card in either of the x1 slots, the x16 @ x4 slot becomes an x16 @ x2 slot Finally, the first PCIe x1 slot is physically

pcle x1 slot No that's not possible The physical interface of that wireless card is PCIe x1 and the lenght of