> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# WavespeedFlashVSRNode - ComfyUI Built-in Node Documentation

> Complete documentation for the WavespeedFlashVSRNode node in ComfyUI. Learn its inputs, outputs, parameters and usage.

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/WavespeedFlashVSRNode/en.md)

The WavespeedFlashVSRNode is a fast, high-quality video upscaler that boosts the resolution and restores clarity for low-resolution or blurry footage. It processes a video input and outputs a new video at a user-selected higher resolution.

## Inputs

| Parameter           | Data Type | Required | Range                                           | Description                                           |
| ------------------- | --------- | -------- | ----------------------------------------------- | ----------------------------------------------------- |
| `video`             | VIDEO     | Yes      | N/A                                             | The input video file to be upscaled.                  |
| `target_resolution` | STRING    | Yes      | `"720p"`<br />`"1080p"`<br />`"2K"`<br />`"4K"` | The desired resolution for the upscaled output video. |

**Input Constraints:**

* The input `video` file must be in the MP4 container format.
* The duration of the input `video` must be between 5 seconds and 10 minutes (600 seconds).

## Outputs

| Output Name | Data Type | Description                                                |
| ----------- | --------- | ---------------------------------------------------------- |
| `output`    | VIDEO     | The upscaled video file at the selected target resolution. |