The Dell Docking Stations WD19 and WD19S allow you to connect all your electronic devices to your laptop using a USB Type-C (USB-C) cable. They are compatible with Dell laptops that have a USB-C port supporting DisplayPort over USB-C or Thunderbolt 3 technology. The docking stations feature various ports, including USB-C (and DisplayPort over USB-C), video ports, audio ports (only on WD19), network ports, USB ports, power or DC input, and power delivery to the laptop. They support up to four displays simultaneously in certain Dell laptops. For more detailed specifications and instructions, you can refer to the Dell support article on using and troubleshooting Dell docking stations WD19 and WD19S.