The upcoming USB 4 will restore a useful feature we lost with the technology's modernization: USB hubs that let you multiply the utility of a single port on your PC.

USB, short for Universal Serial Bus, is a remarkably successful standard more than two decades old now.

These hubs have a cable at one end that plugs into your computer and a number of USB ports to accommodate multiple devices -- a keyboard, mouse, network adapter and memory stick, for example.

USB 4, under development now and due to arrive in products in 2020, should fix that shortcoming, says Ben Hacker, director of USB strategic planning at Intel.

USB-C is good enough that it can replace many ports, including those for power, video, audio and the old-style USB-A ports that laptops have used for years.

USB is in the midst of massive modernization.

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