# Arduino Giga USB-C and an External Power Supply

**URL:** <https://forum.arduino.cc/t/arduino-giga-usb-c-and-an-external-power-supply/1263802>\
**Category:** GIGA R1 WiFi\
**Created:** [May 24, 2024, 1:47pm UTC](https://forum.arduino.cc/t/arduino-giga-usb-c-and-an-external-power-supply/1263802 "2024-05-24T13:47:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Fozz](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/fozz/32/1100295_2.png) [@Fozz](https://forum.arduino.cc/u/Fozz)\
**Post date:** [May 24, 2024, 1:47pm UTC](https://forum.arduino.cc/t/arduino-giga-usb-c-and-an-external-power-supply/1263802/1 "2024-05-24T13:47:26Z")

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Hi,

When I am ready to disconnect the Arduino Giga from my PC, I was wondering if I can power it via the USB-C port using an external power supply.

These web pages mention the Giga's USB-C but **do not mention power** :  
[https://docs.arduino.cc/hardware/giga-r1-wifi/#tech-specs](https://docs.arduino.cc/hardware/giga-r1-wifi/#tech-specs)  
USB-C Programming Port / HID

[https://docs.arduino.cc/resources/datasheets/ABX00063-datasheet.pdf](https://docs.arduino.cc/resources/datasheets/ABX00063-datasheet.pdf)  
USB Peripheral USB-C  
Programming Port  
HID

This web page **DOES mention power** for the Giga:  
[https://docs.arduino.cc/tutorials/giga-r1-wifi/giga-usb/](https://docs.arduino.cc/tutorials/giga-r1-wifi/giga-usb/)  
USB-C - for powering, programming & HID communication

This is a **general Arduino Board** page that mentions power:  
[https://docs.arduino.cc/learn/electronics/power-pins/](https://docs.arduino.cc/learn/electronics/power-pins/)

I looked at the " **Power Tree**" section on this page but I did not completely understand it:  
[https://docs.arduino.cc/resources/datasheets/ABX00063-datasheet.pdf](https://docs.arduino.cc/resources/datasheets/ABX00063-datasheet.pdf)

**Question:** Is this a good example of what to use to power the Giga via USB-C?  
[https://www.adafruit.com/product/5814](https://www.adafruit.com/product/5814)

Thanks,  
Bill

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**Author:** ![Dozie](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/dozie/32/239024_2.png) [@Dozie](https://forum.arduino.cc/u/Dozie)\
**Post date:** [May 27, 2024, 10:22am UTC](https://forum.arduino.cc/t/arduino-giga-usb-c-and-an-external-power-supply/1263802/2 "2024-05-27T10:22:04Z")

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After programming your board, you can power it with a good quality 5VDC output adapter via USB-C (that is, replacing the power from your PC).

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**Author:** ![Fozz](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/fozz/32/1100295_2.png) [@Fozz](https://forum.arduino.cc/u/Fozz)\
**Post date:** [May 27, 2024, 12:02pm UTC](https://forum.arduino.cc/t/arduino-giga-usb-c-and-an-external-power-supply/1263802/3 "2024-05-27T12:02:49Z")

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Hi Dozie,

Thanks for the confirmation.

When your pubs people run out of things to do, they might update the " **do not mention power"** web pages, that O referenced above, to mention power " **with a good quality 5VDC output adapter via USB-C**".

If all of the web pages had mentioned "power" I wouldn't have asked the question 😀

Thanks,  
Bill