Can I plug in a PCIe x4 card into a PCIe x16 slot? : rbuildapc

Can PCIE X4 card be installed in PCIE X16 slot? pcie x4 in x16 slot Yes, you can plug into 16x slot, but off course it will run in 4x speed Some motherboard even let you plug 4x card into 1x pcie 40 in pcie 30 slot PCIe x16 to Dual NVMe SSD Adapter Card (Pre-order Quick view · PCIe x4 to Dual NVMe SSD Adapter Card $ USD

pcie 4 m2 in pcie 3 slot x16 ASRock B650E PG RIPTIDE WIFI AM5 ATX Motherboard, 4 slots DDR5, PCIe x16 Slot x4 NVME Speed up to Sponsored KingSpec XG 7000 2TB