The best docks do two things well: power monitors and stay the hell out of the way. The Dell DS1000 is a $222 dock that doubles as a monitor stand to put your external display front and center. While it saves you from having to keep a separate docking station under your monitor stand, it can hold only one display and the ports can be difficult to reach.

Dell’s dock uses Alt-mode over USB Type-C to send data, charging power and video over a single cable, without requiring a driver or software install. However, as with other Alt-mode docks, the video output doesn’t always work as advertised, in this case failing to output to dual 1080p monitors from one of our test laptops. Overall, the DS1000 is a solid dock for someone who needs one 4K display, but less than ideal for those who need multiple monitors and use lots of accessories.
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https://www.laptopmag.com/reviews/accessories/dell-ds1000-dock