> For the complete documentation index, see [llms.txt](https://docs.kaisar.io/kaisar-network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kaisar.io/kaisar-network/kaisar-architecture/products/kaisar-onenode/kaisar-checker/how-to-purchase-checker-nodes/step-2-choose-the-network.md).

# Step 2 - Choose the Network

Connect your Metamask wallet and select the appropriate blockchain network (Ethereum Mainnet, Arbitrum, Base, Optimism, or PEAQ Mainnet).

<figure><img src="https://3420828033-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FRdDiw8sqrhonsv2Gsd47%2Fuploads%2FkhsLFtG4m1IloP1vvjOK%2FPopup%20connect%20wallet.png?alt=media&amp;token=617ff978-ef8f-4318-bcc7-a6e4ebc78dc5" alt=""><figcaption></figcaption></figure>