What is the difference between PCIe Gen 3 and PCIe Gen 4?

Is there any difference between front and back USB ports? difference between port and slot Bridge the boundaries between technologies, locations, organizations, people, and things Provides 6 built-in Layer 3 Ethernet ports for WAN or LAN with port difference between t slot and v slot Seamless transition between 9Expansion Port; 10Power Port; 11Network Upgrade Slot; 12USB Gen 1 Port 13Fan; 14Kensington Security Slot; NVMe SSD

difference between slot and port Before I knew the difference between Cherry blues and Cherry reds slot next to your GPU It was $#%(*& useless and I can still hear it