What is pcie x1 slot?

What is pcie x1 slot? pcie 1 slot Picture shown identifies the PCIPCIe slot position on a 6-slots ATX server board From left-hand side are PCIX-64 slot-1, PCIX-64 slot-2, PCI-32 slot-3, pcie training error slot 1 1 x PCI Express x16 slot, running at x4 2 x PCI Express x1 slots 2 x PCI slots At the Moment there are 1 x RX480 and 1x R9 390 in use

pcie training error slot 1 You could look at something like the C9Z390-series which have four x16 physical slots and one x1 slot

pcie 4 ssd in pcie 3 slot I have a PCIe x1 slot for network adapter card can any one tell me how many ethernet port i can connect on it  Convert a single PCI Express slot to four additional external PCI slots without any driver or software installation required · External expansion enclosure