Just bought a Dell TB16 dock with a 240w power supply for my Dell XPS 15 7590 for $85 USD. Im getting full charging capabilities and data transfer capabilities with just one
Support for Dell Thunderbolt Dock TB16 | Drivers & Downloads | Dell UK
Dell Thunderbolt Dock TB16 User Guide
Amazon.com: Dell WD15 Monitor Dock 4K with 180W Adapter, USB-C, (450-AEUO, 7FJ4J, 4W2HW),Black,Dual Display : Electronics
Dell Thunderbolt Dock TB16 Review: Connect Your Whole Setup with One Cable | Gear Diary
Dell Docking Station Ethernet Not Working [SOLVED]