# Metamask: Add Arbitrum Testnet Network

To configure Metamask for the Arbitrum Test Network we must add a new RPC Network. For this, open Metamask, access the accounts menu at the top-right corner and select Settings:

![](https://2826361711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzgcnghdTtPD0BGhuSNfJ%2Fuploads%2Fgit-blob-1d5cb2bc4dd07ade63557e7d71cf185a56731501%2Fmetamasksettings.png?alt=media)

Scroll down to the Networks section and select it:

![](https://2826361711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzgcnghdTtPD0BGhuSNfJ%2Fuploads%2Fgit-blob-a731bfaf3de5ed2aef63fd3758770ff53bab505a%2Fmetamasknetworks.png?alt=media)

At the bottom click on Add Network and fill in the following data:

![](https://2826361711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzgcnghdTtPD0BGhuSNfJ%2Fuploads%2Fgit-blob-9274646f3afe88086e28a3da94158de37affe9a9%2Fimage%20\(18\).png?alt=media)

* **Network Name:** Arbitrum Rinkeby
* **New RPC URL:** <https://rinkeby.arbitrum.io/rpc>
* **Chain ID: 421611**
* **Currency Symbol:** ETH
* **Block Explorer URL:** [https://testnet.bscscan.com](https://rinkeby-explorer.arbitrum.io/#/)

Finally select the **Arbitrum Rinkeby** in Metamask's network selector (drop down at the top of Metamask):

![](https://2826361711-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzgcnghdTtPD0BGhuSNfJ%2Fuploads%2Fgit-blob-7a0f8da62a2afbdeaaf16017440db60a806c7f4d%2Fimage%20\(31\).png?alt=media)

You are connected to the **Arbitrum Rinkeby** now.