> For the complete documentation index, see [llms.txt](https://userguide.wlanpi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://userguide.wlanpi.com/hardware/wlan-pi-m4/powering-options.md).

# 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="/files/cyEbNTGyF01tswX7ANAO" 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="/files/xhoHm5JZssL8AguKzmAZ" alt=""><figcaption><p>Supported USB-C Apple MacBook 60W charger</p></figcaption></figure>

<figure><img src="/files/EUypLmpfuQPnldyWyM8X" 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="/files/hGa0wd3rMv3dYCVg4gek" alt=""><figcaption><p>Incompatible 12V non-USB-PD power supply that fried our M4 unit</p></figcaption></figure>


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