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# SamplerDPMPP_SDE - ComfyUI Built-in Node Documentation

> Complete documentation for the SamplerDPMPP_SDE 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/SamplerDPMPP_SDE/en.md)

The SamplerDPMPP\_SDE node creates a DPM++ SDE (Stochastic Differential Equation) sampler for use in the sampling process. This sampler provides a stochastic sampling method with configurable noise parameters and device selection. It returns a sampler object that can be used in the sampling pipeline.

## Inputs

| Parameter      | Data Type | Required | Range            | Description                                                       |
| -------------- | --------- | -------- | ---------------- | ----------------------------------------------------------------- |
| `eta`          | FLOAT     | Yes      | 0.0 - 100.0      | Controls the stochasticity of the sampling process (default: 1.0) |
| `s_noise`      | FLOAT     | Yes      | 0.0 - 100.0      | Controls the amount of noise added during sampling (default: 1.0) |
| `r`            | FLOAT     | Yes      | 0.0 - 100.0      | A parameter that influences the sampling behavior (default: 0.5)  |
| `noise_device` | COMBO     | Yes      | "gpu"<br />"cpu" | Selects the device where noise calculations are performed         |

## Outputs

| Output Name | Data Type | Description                                                                 |
| ----------- | --------- | --------------------------------------------------------------------------- |
| `sampler`   | SAMPLER   | Returns a configured DPM++ SDE sampler object for use in sampling pipelines |