Z690 PCIe slot question

Verilux® NVME Adapter PCIe x16 with Gel Pad, NVME or AHCI SSD to PCIE Adapter Card for Key M 2230, 2242, 2260, 2280 Size SSD, Support PCIe x4 x8

On current Intel single socket systems a PCIe switch is required to get 4 full X16 slots for GPU's The alternative possibility for 4 GPU's on

what slot machine pays out the best The smallest PCIe slot will run at x1 speed, while a full-size PCIe slot will run at x16 PCIe x16 slots are generally intended for use with Graphics Cards

what is a slot wide receiver If it has only one PCI Express x16 slot, the choice is easy, but some motherboards have more than one PCI Express x16 slot for multiple graphics card support