> For the complete documentation index, see [llms.txt](https://zerodensitydocumentation.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zerodensitydocumentation.gitbook.io/docs/reality-5.3-sp3/reality-5.3-sp3/user-guide/nodegraph-actions/nodegraph/sink-pin.md).

# Sink Pin

The <mark style="color:yellow;">**`Sink`**</mark> pin is a unique tool for creating an endpoint for the nodegraph. When you create a <mark style="color:yellow;">**`Sink`**</mark> node, you essentially generate the node that initiates the execution of the entire nodegraph.

The <mark style="color:yellow;">**`Sink`**</mark> node acts as the terminal point of your nodegraph, where the final processed output is directed.

In cases where you lack an AJA card and, consequently, can't create <mark style="color:yellow;">**`AJAIn`**</mark> and <mark style="color:yellow;">**`AJAOut`**</mark> nodes for video I/O connections, the <mark style="color:yellow;">**`Sink`**</mark> Node becomes a handy tool.&#x20;

Without direct hardware connections, the <mark style="color:yellow;">**`Sink`**</mark> node allows you to process and manipulate data within the Reality Hub environment.

### Creating Sink Node

* Hover over the output pin of your desired node.

<div align="left"><figure><img src="/files/SyPljSNvpzfoHVaZxWSt" alt=""><figcaption><p>Creating Sink Node</p></figcaption></figure></div>

* Hold the left mouse button and drag, then release it.
* In the **Node Creation Menu**, locate and click on the **Sink** button.

<div align="left"><figure><img src="/files/hceWpt2YCG5aGPynrRag" alt=""><figcaption><p>Sink Node</p></figcaption></figure></div>