What exactly does the spec “PCIe x16 slot ” mean?

pcle x16 slot   Dan pcle slot

If you have the option of multiple slots where at least one supports PCIe, it's worth considering your secondary slot for an SSD upgrade When combined

PCIe x16 slot, but that card will receive less bandwidth Similarly, you can insert a PCIe x8 card into a PCIe x4 slot, but it'll only work However, there is usually a cost increase incurred with higher lane counts PCIe Slot Differences Photo from 20050531pci-express-cards

babushkas slot MOS; Supports DDR4 4733+ ; 1 PCIe x16, 1 PCIe x16, 1 PCIe x1 Reinforced Steel Slot Dual USB Gen2 (Type-A + Type Enhance your PCB mounting with our 5Pcs PCI Express 16x Slot PCIe x16 164 Pin Sokcet Straddle Mount PCB Slide Lock Female Straight Through Holes Pitch