PCIEx16 drops to x 8 when M2 SSD is installed???

PCIEx16 drops to x 8 when M2 SSD is installed??? m2 expansion slot Expansion Card, NVMe to PCIe X4 X8 X16 Converter Card with Aluminum Heat Slot Riser Card Extender Extension Ribbon Flex Relocate Cable 20cm m2 slot screw An slot is a type of expansion slot found on modern motherboards that is primarily used for connecting solid-state drives

m2 slot screw Expansion Card, NVMe to PCIe X4 X8 X16 Converter Card with Aluminum Heat Slot Riser Card Extender Extension Ribbon Flex Relocate Cable 20cm

m2_1 slot drives and a 7mm either SSD or HDD The board im gonna use says this: Expansion Slot: AMD Ryzen™ 2nd Generation The motherboard slot #2 shares bandwidth with several PCIe expansion slots When the slot is populated with a PCIe drive, four PCIe expansion