Microsoft hasn't published full specs of the Display Dock, but Roper and Panay said both the Dock and Lumia devices will have new USB-C ports, which Panay said allows the Lumias to have 5Gbps throughput.
The USB-C port is on the bottom of each of the smartphones and on one side of the Dock. On the other side of the dock are six other ports, including three USB ports and an HDMI port (supporting full 1080p video) and a display port. It isn't clear what the sixth port on that side is for.
The USB-C port used in both devices was developed from a specification announced a year ago by the USB 3.0 Promoter Group, part of the USB Implementers Forum. The port can support both power and peripherals.
Microsoft, Hewlett-Packard and Intel are part of the Promoter Group. USB-C has been used in several new tablets and laptops, including the MacBook Air, and first appeared in the Nokia N1 tablet late in 2014.
Microsoft has posted a photo and specs for a "Microsoft Display Dock" on its website that shows a somewhat different device than the one demonstrated at the Tuesday event. The online device is shown with a silver case and has only 2 USB 2.0 ports, while the Display Dock shown on Tuesday was all black and had three USB ports. Microsoft didn't explain the differences or say when the online version was posted.
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