What is the purpose of the PCIe X1 slot

Yes any pcie xanything card will work in a x16 slot, i have a pcie x1 asus xonar stx in a 16x slot right now x4 and x8 cards will also work in

Pcie x1 slots not working 2 GPUS and one NVME x570 ASUS TUF GAMING PLUS Hey guys I recently completed my Unraid vm server which has

pcle x1 slot I recently got an LSI 2308, and have not had a chance to test it yet My motherboard only has one PCIE x16 slot ,

pcle x16 slot NVMe PCIe® x4 & PCIe® x2 • 1x PCIe ® Slot 2 2280 • NVMe PCIe x4 and SATA Mode 12 Smart Fan 5 + FAN STOP • 3 Fan