“Do I need power supply? because I see it works without power cable.”

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• No. It will use your laptops power. Just plug it into your laptop and you’re good.

  Answered by AmandaMartin 4 years ago

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• A power supply is intended for pass-through charge and adds additional power to the USB ports for certain high-powered USB peripherals. You may use the Dock with or without a power-supply. If you are interested later on, the JUP2290 is designed for the JCD543 or your own 65W or higher power-brick. Please make sure your computer supports "DisplayPort Alt Mode" and "Power Delivery" for the Dock to function properly. Thank you.

  Answered by J5create Team 4 years ago

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