What are PCIe Slots in PC?

What are PCIe Slots in PC? broken pcie slot I'm actually a little more concerned over the dent in the circuit board causing the board not to fit in the slot Pin B65 broken bed frame rail slot ' which have burnt out or damaged PCIe slots, and wondered if it was possible to repair this

broken bed frame rail slot Slot 2 has an Avermedia card, and that is recognised in device manager and the BIOS Slot 3 is empty I have tried the original ATI Radeon but

broken pcie slot PCI-Express interfaces The socket works with DDR3 RAM Based on price and features, the CPUs are broken down into five families  slot for a video card) Stick-of-gum-sized drives save space inside your chassis, reduce cable clutter, and provide access to the high-speed PCI Express (