--- title: Robinhood Chain for a Solana wallet holder: what you already have, what you need date: 2026-09-13 slug: robinhood-chain-wallet summary: Chain 4663, gas paid in ETH, blocks every 100 milliseconds, on the Arbitrum stack. A Phantom user already has an address there. How MetaMask adds the chain, how ETH for gas gets there, and what normal looks like on that chain, so that a wrong page is easy to spot. Dated facts from the chain's own documentation, no recommendation. --- *13 September 2026. Facts about Robinhood Chain for someone who holds a Solana wallet today, collected from the chain's own documentation and dated. Written by a community member who held SABL until 13 September 2026 and holds none since; runs the independent Sable Observatory at sable.primecircle.cloud. Not run by Sable Network or by Robinhood. Nothing here is a recommendation to buy anything.* The team has said Sable moves to Robinhood Chain. Whatever shape that takes, a holder who wants to be there needs an address on that chain and a little ETH for gas. Most Solana holders already have the first and do not know it. ## The chain, in five lines - Robinhood Chain is an Ethereum Layer 2 on the Arbitrum stack, built with Offchain Labs. Mainnet opened on 1 July 2026, testnet on 10 February 2026. - Chain ID 4663. Gas is paid in ETH. Blocks come every 100 milliseconds or so, with preconfirmations; a preconfirmation is not finality. - Its native dollar is USDG from Paxos, not USDT. - Uniswap, 1inch, Lighter, Chainlink and Morpho are live on it. LayerZero is the official cross-chain partner (endpoint 30416). - Its purpose, in Robinhood's words, is tokenised US stocks and ETFs for customers outside the US, and "agentic trading". ## What you already have: Phantom Phantom has supported Robinhood Chain since 23 July 2026. If you hold SABL in Phantom, the same wallet already has an Ethereum-style address (0x, then 40 hex characters) that works on chain 4663. Phantom shows one address per chain family; the Ethereum-style one is the one that counts here. You did not create anything new for it and you never need a seed phrase to find it; Phantom's own help pages show where it is. That matters for one of the shapes the move can take: a conversion that asks for a destination address on 4663 can take your own Phantom address, and the safest page design pre-fills it rather than asking you to type one. ## If you use MetaMask MetaMask does not list the chain by default. Add it by hand with the values from the chain's documentation page, docs.robinhood.com/chain/add-network-to-wallet: - Network name: Robinhood Chain - RPC URL: rpc.mainnet.chain.robinhood.com (as https) - Chain ID: 4663 - Currency symbol: ETH Type the values from the documentation page yourself, not from a message or a screenshot. A wrong RPC shows you a wrong chain. ## Gas: a little ETH on the chain Every transaction on 4663 is paid in ETH held on 4663. The documented way in is the canonical Arbitrum bridge from Ethereum mainnet (docs.robinhood.com/chain/connecting): fast into the chain, and a withdrawal back to Ethereum waits out the challenge period, about a week on Arbitrum chains. Check the destination chain name twice before confirming. A few dollars of ETH cover many transactions at this chain's fees, and you do not need it until there is something to do there. ## What normal looks like - A token on 4663 is a 0x address, 42 characters long. A Solana mint is a longer base58 string. If a page shows you a Solana address and calls it the Robinhood Chain token, the page is wrong. - Uniswap on 4663 shows the token address under the name. Read the address, not the name. - The chain's explorer is linked from docs.robinhood.com/chain and sits behind a bot wall, so DexScreener is the easier public view of any pool there. ## What this page does not say Nothing here says whether to buy the new token, when, or where. The address does not exist yet; when it does, the checker at sable.primecircle.cloud/#move shows it with its two sources. ## Sources - Robinhood newsroom, 1 July 2026, mainnet, Stock Tokens, agentic trading: robinhood.com/us/en/newsroom/robinhood-accelerates-global-expansion-robinhood-chain-mainnet-stock-tokens-agentic-trading/ - Robinhood Chain docs, connecting and the bridge: docs.robinhood.com/chain/connecting - Robinhood Chain docs, adding the network to a wallet: docs.robinhood.com/chain/add-network-to-wallet - Arbitrum DAO factsheet, Robinhood Chain mainnet: forum.arbitrum.foundation/t/arbitrumdao-factsheet-robinhood-chain-mainnet-launch/31041 - LayerZero deployments, Robinhood Chain: docs.layerzero.network/v2/deployments/chains/robinhood - Phantom support for Robinhood Chain from 23 July 2026, as reported by Solana Compass - USDG as the native stablecoin, secondary reports of 21 August 2026