USB-C is a complicated standard, and if you’ve got a new USB-C laptop, you’ll probably want an external hub to get back some of the ports you’re missing, like HDMI, Ethernet, USB Type-A, and SD card slots. We tried a bunch of hubs, considering things like charging speed, ports, design, and cost to find out which one is the best for your new computer. Subscribe: http://goo.gl/G5RXGs Here are some
A growing number of classrooms in China are equipped with artificial-intelligence cameras and brain-wave trackers. While many parents and teachers see them as tools to improve grades, they’ve become some children’s worst nightmare. Video: Crystal Tai More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com Visit the WSJ Video Center: https://wsj.com/video On Facebook: https://www.

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