# Uart Transmit

### Transparent Transmission

* Go to Setting->System->Uart Transmit

<figure><img src="https://4245975826-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fkg35R2FOXC4295wPDYgm%2Fuploads%2Feev6cHEZXEQGUJMsYtZ1%2FGKHVE_SystemUart.jpg?alt=media&#x26;token=80323958-9592-48ef-bf38-5388d5f2e0cf" alt=""><figcaption></figcaption></figure>

{% hint style="warning" %}
It's ONLY available for mini HDMI video encoder without mini HDMI loopout. But for other version, currently there's no related serial port for transparent transmission. OEM/ODM will be acceptable accordingly.
{% endhint %}