I figured the only way to run 3 external monitors from my laptop was to buy more expensive models that can be daisy chained (each has a DP output port used to run another monitor can be used). But my dock has 2 DP connectors so one connects directly to the monitor and the other to this handy device. I now have 3 suitable external monitors and my laptop's flaps closed - exactly what I was aiming for. I can't boot my laptop (I have the original Surface Book with dock) AND 3 external displays at the same time, and when I try to extend the desktop only 2 displays work at first. But in the display settings I was able to select the laptop's built-in display and in the multiple display settings I could select "Turn off this display". I had to scroll down a bit to find it - it was originally set to "Extend the desktop to this display". But through trial and error I managed to get 3 external monitors to work.
USB to USB Type-C adapter
18 Review
4K / 30Hz USB-C to HDMI Adapter - 3-in-1 Type-C Converter Cable for MacBook Pro, MacBook, Mac Pro, iMac, Chromebook, and USB 3.0 Type-C Devices (2017/2018)
13 Review
Ultimate Compatibility: USB C to HDMI Adapter for MacBook, iPad, Dell, Surface & More
12 Review
🔴 2 Pack JSAUX HDMI Coupler Female to Female for 4K HDR Extension - Aluminum Alloy Adapter for HDTV, Roku Stick, Computer, Monitor, Laptop, Projector, DVD Player, PS 4/3 (Red)
12 Review
Renewed Logitech G PRO X Wireless Lightspeed Gaming Headset with Blue VO!CE Mic Filter for Immersive Gaming Experience
122 Review
Logitech HD Webcam C270: Crisp 720p Widescreen Video Calling & Recording (960-000694), Lightweight and Portable at 3.15 lb.
192 Review
Smartphone Samsung Galaxy A50 4/64 GB, 2 SIM, black
82 Review
Enhance Your Visual Experience with Logitech C260 Webcam
78 Review