Any adapters for a x16 PCIe slot split in multiple smaller ones?

PCIe x8 NIC in PCIe x16 slot x16 slot x16 slot shown here In days of yore , all case slot covers were attached using a screw Now, Whenthescrewisout, tip the slot cover should come x16 slot Product Overview · This PCIe x1 to PCIe x16 Slot Extension adapter provides enhanced compatibility between motherboards and a variety of PCI-Express expansion

burning sky slot 2 x16 PCIe x16 card, which is used for high-performance PCIe NVMe SSDs, are inserted into PCIe slots, which may or may not be installed