The VisionTek VT5000 Dual 4K Thunderbolt 3 Monitor Notebook Dock is just what you need for a 3 monitor set. No problems with installation and configuration.
Docking Station OKX Display Ethernet
11 Review
Dell 452-BCYT D6000 Universal Dock in Black: A Hassle-free Single Solution
17 Review
Universal Laptop Docking Station for Windows and Mac - Plugable USB 3.0 Dual DisplayPort 4K Monitor with Gigabit Ethernet, Audio, and 6 USB Ports
12 Review
Enhanced HP USB-C/A Universal Dock G2 - Optimal for Seamless Connectivity (Part#: 5TW13AA#ABA)
11 Review