# USB Connection

{% hint style="warning" %}
The ROVL is set at the factor to be either TTL-serial or USB. Just changing the cable is not enough to switch the interface between serial and USB. Contact the factory for help if you need to make this change.
{% endhint %}

### ROVLe USB Connection

<figure><img src="https://2814148991-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlN2lfY7yE0hWlcn6W1BS%2Fuploads%2FRbRhC72TM1nTyGHXrzHA%2Fimage.png?alt=media&#x26;token=298094ba-6598-44b8-bc32-2c3626057faa" alt=""><figcaption></figcaption></figure>