> For the complete documentation index, see [llms.txt](https://docs.console.zenlayer.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.console.zenlayer.com/welcome/elastic-compute/get-started/manage-instances/change-instance-type.md).

# Change Instance Specification

If your current instance specification no longer meets your needs, you can change it to another supported specification to adjust its vCPU and memory.

{% hint style="info" %} <mark style="color:blue;">**Note**</mark>

* <mark style="color:blue;">Stop the instance before changing its specification.</mark>
* <mark style="color:blue;">Only specifications supported by the current instance are available for selection.</mark>
* <mark style="color:blue;">New changes take immediate effect, and the instance is billed at the new specification.</mark>
  {% endhint %}

## Procedures

1. In the **Instances** list, make sure the target instance is stopped.
2. Go to **More Actions** > **Actions** > **Change Specification** of the target instance.

   <div align="left"><figure><img src="https://3201622183-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9X3FDdkCL2HzhbPpPMFt%2Fuploads%2Fgit-blob-ca257c3cc0bf777b71c1960f6cbfc4988938d142%2Fzec-change-instance-type-menu.png?alt=media" alt="" width="328"><figcaption></figcaption></figure></div>
3. In the **Change Specification** window, check your current instance specification, and select a new one under **Select new instance specification**. You can sort the list by vCPU or RAM.

   <div align="left"><figure><img src="https://3201622183-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9X3FDdkCL2HzhbPpPMFt%2Fuploads%2Fgit-blob-4e5f0891b14e1de7d537a8322933aa53ca22fa16%2Fzec-change-instance-type-dialog.png?alt=media" alt="" width="654"><figcaption></figcaption></figure></div>

   <div data-gb-custom-block data-tag="hint" data-style="warning" class="hint hint-warning"><p>Prices shown in the screenshot are for reference only and may not reflect the latest pricing. Refer to the console for actual prices.</p></div>
4. Review the new specification and estimated cost in **Summary**, and click **Confirm Changes**.