PCIE slot configuration in bios?

In ASUS 「PCIe x16 Slots - 4」 - Motherboards Components , you could find most 4 x 5 x SlimSAS SATA 6Gbs 1-4

The PCIe to PCI x4 expansion box is an enclosure that uses a 12VDC AC power adapter, this is necessary to supply the power needed to use the new PCI slots Data

4x4 turbo slot Marvell 88SE9215 PCIE to SATA Card PCI-E Adapter PCI Express to Expansion Card 4Port SATA III 6G for SSD HDD IPFS Mining · TISHRIC PCIE SATA 4X 1X

4x4 joker slot Our XMC-to-PCI Express Adapter 4X permits the use of a single-wide XMC module in a 4X PCIe slot PCI express lanes on the P15 XMC connector are