No. The USB-C port on the MacBook only outputs a DisplayPort v1.2 signal, which can only support one of the two connectors at a time — either HDMI to 1920x1080, or Mini DisplayPort to 2560x1440 — but not both together.
Sure! USB-C is an industry standard, and will be rapidly appearing on pretty much all new PC products later this year. HydraDock can be powered by any USB-C computer power supply, and can connect to any computer with a USB-C port — like the new Google ChromeBook Pixel, for instance.
No. The HydraDock draws no power from the MacBook, and requires a power supply plugged into its USB-C female jack on the right end of the product. As any notebook computer (including the MacBook and the ChromeBook Pixel for now) include a USB-C power supply, the HydraDock repurposes that power supply for its own use and that of the computer.
The HydraDock supports one of the following at a time — not both: one Mini DisplayPort connection at up to 2560x1440 pixels, 60Hz refresh rate; or, one HDMI connection at up to 1920x1080 pixels, 60Hz refresh rate.
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