Kensington USB-C USB 3.0 Docking Station - SD4700P USB-C and USB 3.0 Dual Display Universal Laptop Docking Station with DisplayPort++ and HDMI outputs, 6 USB ports (K38240EU)

Product Information

Q: How does my USB-C cable know what device I have and what functions the USB-C port on my device can perform? Dual video is only supported on Windows 10 and 8.1 devices (Mac and Chrome USB-C devices do not support dual video over MST).

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On the rear is a PSU power input, USB-C downlink from the computer, three each of DisplayPort 1.2 and HDMI 2.0, a Gigabit LAN port and four USB-A 3.1 Gen2 ports. At a rough estimate, the ports on this device would require more than 76Gb/s of connection to the host computer to have all the necessary bandwidth, and it only has 10Gb/s. If you don’t have USB-C and are using the provided USB-A to USB-C cable that Kensington kindly includes, then a maximum of two 4K displays is possible. Uses the power supply from SD4700P, SD4750P, SD4780P or SD4900P to provide power to USB-A enabled laptops that support 20V/85W. *The power splitter is optimized to provide rapid charging at 60W and is not intended for use with laptops under 20V/60W.*of Monitors Supported: 2 (M1/M2 Base Chipset MacBook or USB-C Alt Mode laptop supports only a single external display) Our immediate reaction to that information was to wonder why mounting six complicated cabling ports on this device was a better option than providing three DisplayPort and some inexpensive cable adapters for HDMI?

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And the other caveat to this hardware is the charging. The 60 watts provided isn’t enough power for charging the more powerful Ultrabook’s, like the 15-inch Apple MacBook Pro.

Summary:

As we might have predicted before opening the box, the glossy surfaces attract dust and fingerprints compared with the textured ones, that don’t. Overall, the compromises made to achieve triple displays are too great, and most users would be better with a dual-screen option and plugging the third display directly into the laptop to reduce the bandwidth overhead.