> For the complete documentation index, see [llms.txt](https://indoor.router.works/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://indoor.router.works/ezr24/manual/sim-card-and-power/power-supplies.md).
# Power Supplies
An AC to DC power adapter is included in the package.
Connecting the DC power adapter to the 100\~240 Volt AC electrical outlet power, it outputs 12Volt 2Amps DC power to the 4G router.
{% hint style="info" %}
You could exchange the plug if you received more than one power plug. Press the "Push" button and twist the power plug clockwise to remove it.
Then, install another plug on the power adapter and twist it in the anti-clockwise direction to tighten it.
{% endhint %}
## Alternative DC Power
The DC power socket on the 4G router can work with 12Volt and 2Amps DC power. The correct DC jack is Ø5.5 x 10mm, and the inner pin is Ø2.1mm.
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