# Powering options

## Power over Ethernet (PoE)

The M4 has built-in PoE circuitry. No additional power supply is required. This is the recommended option.

## USB-C port of your laptop

WLAN Pi M4 can also be powered by USB-C port of your laptop using USB-C to USB-C cable.

Some older laptops might not be able to provide enough power via USB. Please double-check.

<figure><img src="https://2540947589-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY3fri1fsWlS5euhAG0JN%2Fuploads%2Fot4lJOoPWH94YzP3zLEA%2Fimage.png?alt=media&#x26;token=e1f3b5f8-311a-4eea-969b-a8bdc78871c4" alt=""><figcaption><p>USB-C to USB-C cable</p></figcaption></figure>

## Apple USB-C PD MacBook chargers

While some MacBook USC-C chargers will charge the M4, some won't.

<figure><img src="https://2540947589-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY3fri1fsWlS5euhAG0JN%2Fuploads%2Fy5603eB4c1CLEi63mtZk%2Fmacbook-charger.jpg?alt=media&#x26;token=91755d84-53c8-41f8-be19-7fac182b456e" alt=""><figcaption><p>Supported USB-C Apple MacBook 60W charger</p></figcaption></figure>

<figure><img src="https://2540947589-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY3fri1fsWlS5euhAG0JN%2Fuploads%2FGuoNb8no7OlroogkrfTp%2Fimage.png?alt=media&#x26;token=b818cc1a-f13e-46cd-9309-939a1c33ce55" alt=""><figcaption><p>This USB-C Apple won't work</p></figcaption></figure>

## Power Distribution (PD) charger

A standard 5V USB-C PD charger is the best option.

### <mark style="color:red;">Warning</mark>

<mark style="color:red;">Please do NOT use non-PD power supplies with USB-C connector, that are not rated at 5V. Doing so will result in a magic smoke escape. We've tested that, so that you don't have to.</mark>

<figure><img src="https://2540947589-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FY3fri1fsWlS5euhAG0JN%2Fuploads%2FY1qWLp9gTnTecHqhWRTz%2FIMG_1502.jpeg?alt=media&#x26;token=512cd7e5-8a54-46d5-97f6-709a767e5a27" alt=""><figcaption><p>Incompatible 12V non-USB-PD power supply that fried our M4 unit</p></figcaption></figure>