PCIe Motherboard

There are five kinds of PCIe slots available, and they are x1, x2, x4, x8, and x16 All these numbers stand for the number of lanes on the PCIe slots The lanes

All modern PCs have PCIE RAM is never installed in a PCIE slot And no you can't install RAM in a USB port either

pcie 4 m2 in pcie 3 slot Anyone have a suggestion on a new PC that still has a PCI slot in it? I prefer HP or Lenovo EliteDesk 800 and ThinkCentre M73

pci 4 in pci 3 slot 12th Gen Alder Lake Socket-S, Xe Graphics Dual 4K Displays HDMI® + DP , PCIe x16 + WiFi 6EBT + 2 PCIe Gen4x4 NVMe, Dual LAN + 6 Rear USB