Yes. Cryptnox can hold Ocean Protocol OCEAN as an ERC-20 token on Ethereum at a 0x-prefixed EVM address after you add the token or network manually if needed. OCEAN is not pre-programmed on the card. With the Cryptnox Crypto Hardware Wallet – Dual-Card Set, private keys are generated inside the secure element and never leave it, and the free Cryptnox app on iOS and Android connects to Web3 through WalletConnect and works with MetaMask.
CRYPTNOX products are also available worldwide through our official Amazon stores.
Ocean Protocol OCEAN is held with Cryptnox through its Ethereum ERC-20 route. The receiving account is an Ethereum-style account, so the address format is a 0x-prefixed, 20-byte EVM address. OCEAN is not pre-programmed on the Cryptnox card, which means the token or network may need to be added once through an Add a Token or Add a Network step before it is visible in the wallet interface.
The Ocean Protocol token documentation is the relevant Ocean reference when you are confirming that you are dealing with the OCEAN token. For the Cryptnox side, the custody point is the Ethereum account: the card set secures the private keys for the 0x address that can hold OCEAN as an ERC-20 token.
Before sending OCEAN, compare the Ethereum ERC-20 route against the Cryptnox coin and blockchain support information so the asset, chain, and address type match the account controlled by the card set.
For OCEAN, the address you use with Cryptnox is not a separate Ocean-specific address format. It is a 0x-prefixed EVM address on Ethereum. After the Dual-Card Set is initialised, that Ethereum account can hold OCEAN in its ERC-20 form once the token or network has been added where needed.
The manual add step matters because OCEAN does not ship as a ready-made card profile. If OCEAN is not shown in the app or connected wallet view, use Add a Token or Add a Network once rather than looking for a separate OCEAN application on the card. The visible token entry helps you view the ERC-20 balance, while the secure element protects the private keys for the 0x address.
This distinction is important for a buyer who holds more than one asset. OCEAN is handled through the Ethereum ERC-20 account path, while the card set protects the private keys for that account rather than storing a separate OCEAN-only address type.
When OCEAN is held at a Cryptnox-secured Ethereum address, the private keys are generated inside the secure element and never leave it. The Cryptnox app, WalletConnect, and MetaMask can help you work with the account, but they do not turn OCEAN into a separate address type and they do not move the private keys out of the secure element.
The Cryptnox card uses an EAL6+-certified chip, which is a property of the chip platform. For an OCEAN buyer, the practical focus is the Ethereum account: the keys that control the 0x address are created and kept inside the secure element, while OCEAN remains an ERC-20 token associated with that address.
The protected item is not just the visible OCEAN token line in a wallet view. The protected item is the private key for the Ethereum account that can hold OCEAN. If the OCEAN token entry has to be added again in an interface, the underlying account is still the same 0x address controlled by keys generated inside the secure element.
Unlocking uses the phone’s biometrics through the Cryptnox app. The card itself has no biometric sensor. That division keeps the card focused on key protection for the OCEAN-holding Ethereum address while the phone provides the user unlock step through the app.
The Cryptnox Crypto Hardware Wallet – Dual-Card Set ships uninitialised. During setup, the seed is generated inside both secure elements, so the second card is the backup. For OCEAN, that means the backup card protects access to the same Ethereum account that can hold the ERC-20 token at a 0x address.
This backup model is especially relevant when OCEAN has been added manually. A token entry can be added again in a wallet view if needed, but the important custody element is the card-protected Ethereum account. The second card backs up the seed generated inside the secure elements, not a pre-programmed OCEAN token screen.
For OCEAN buyers, the backup question is tied to the Ethereum 0x address. Protect the card set that controls that address, then add OCEAN as an ERC-20 token in the interface when the display requires it.
The Cryptnox card is a contact and NFC smart card. You can tap it to a phone, or insert it into a reader. OCEAN does not change that physical model, because the asset is held through an Ethereum 0x address and the card remains the key-holding device for that address.
On mobile, the free Cryptnox app is available for iOS and Android. When using OCEAN, the app works with the card while the asset remains an ERC-20 token on Ethereum. If OCEAN is not displayed, the required action is to add the token or network manually; the physical card interface does not pre-enable OCEAN.
When the card is inserted into a reader, the custody principle is unchanged. The private keys for the Ethereum account are generated inside the secure element and never leave it. Tapping the card to a phone or inserting it into a reader changes how the card is presented to the device, not the OCEAN support route.
The Cryptnox Crypto Hardware Wallet – Dual-Card Set product page is the buying route for the Swiss-engineered card set used to secure the Ethereum address that can hold OCEAN.
Cryptnox connects to Web3 through WalletConnect and works with MetaMask. For OCEAN, that matters because the supported form is an ERC-20 token on Ethereum, and the relevant account is an Ethereum 0x address available in the wallet interface after the correct token or network setup.
The Ocean Protocol wallet guidance is useful when checking how Ocean expects a wallet to be prepared. With Cryptnox, the Ethereum account is secured by the card set, and OCEAN can be added manually as an ERC-20 token when the connected interface does not show it automatically.
When you are setting up the card before adding OCEAN, the Cryptnox hardware wallet tutorials give product setup guidance for the card and app workflow.
Buyers choosing Cryptnox for OCEAN should focus on three details: OCEAN is ERC-20 on Ethereum, the address is a 0x-prefixed EVM address, and the token or network may need to be added manually. Those details determine whether the receiving address matches the asset you intend to hold.
The security model is tied to the Ethereum account that holds OCEAN. Private keys are generated inside the secure element and never leave it. The second card is the backup because the seed is generated inside both secure elements during setup. The card can be tapped to a phone or inserted into a reader.
If you are still comparing card-based custody options before buying for OCEAN, the Cryptnox hardware wallet collection gives broader product context before you focus on OCEAN on Ethereum.
OCEAN on Cryptnox uses an Ethereum ERC-20 route. The receiving account is a 0x EVM address, and the setup step is to add OCEAN or the required network manually if needed. This matters when you are also researching other assets for the same Dual-Card Set, because different assets can involve different routes and address expectations.
If your buying decision is for TRON rather than OCEAN ERC-20 on Ethereum, compare that need with the Cryptnox hardware wallet for TRON. If your question is Polygon rather than OCEAN on Ethereum, review the Cryptnox hardware wallet for Polygon instead of treating OCEAN as a Polygon asset.
Ronin and Bitcoin are also separate buying questions from OCEAN’s ERC-20 setup. Buyers evaluating RON can use the Cryptnox hardware wallet for Ronin, while buyers evaluating BTC can use the Cryptnox hardware wallet for Bitcoin. For OCEAN, stay with Ethereum, ERC-20, and a 0x-prefixed address.
Choose Cryptnox for OCEAN when you want the Ethereum account’s private keys generated inside the secure element, a second card as the backup from the default setup, and a manual token-add route for OCEAN ERC-20 on Ethereum.
No. OCEAN is not pre-programmed on the card. It is held as an ERC-20 token on Ethereum, so you add the token or network manually if needed. Once added, OCEAN is associated with a 0x-prefixed Ethereum address controlled by private keys generated inside the secure element.
Use an Ethereum-style 0x-prefixed EVM address. The supported OCEAN route is ERC-20 on Ethereum, and that uses a 20-byte EVM address beginning with 0x. Do not look for a separate Ocean-specific address format when using Cryptnox for this OCEAN route.
The Dual-Card Set ships uninitialised. During setup, the seed is generated inside both secure elements, so the second card is the backup. For OCEAN, that backup protects access to the same Ethereum account that can hold the ERC-20 token after it has been added.
No. The card itself has no fingerprint reader or face scanner. Unlocking uses the phone’s biometrics through the Cryptnox app. The card remains the secure key-holding device for the Ethereum address that can hold OCEAN.
Yes. The free Cryptnox app connects to Web3 through WalletConnect and works with MetaMask. For OCEAN, the relevant account is an Ethereum 0x address, and the token may need to be added manually as an ERC-20 token if the interface does not show it automatically.
The private keys are generated inside the secure element and never leave it. The card uses an EAL6+-certified chip, which is a property of the chip platform. OCEAN is held through an Ethereum account, and the card protects the keys controlling that 0x address.
Importing an existing BIP39 recovery phrase is available as an advanced option, but it is not the default setup. The default Dual-Card Set setup generates the seed inside both secure elements, making the second card the backup without requiring a written recovery phrase by default.
No, and on this network that is not a limitation. The Cryptnox wallet uses one address per chain. HD address rotation comes from Bitcoin’s UTXO model and the BIP32/BIP44/BIP49/BIP84 derivation scheme; on account-model networks each account is a single fixed address by design, so the question does not apply in the same way. Cryptnox’s single-address-per-chain behaviour matches how these networks work.
At the cryptography layer the card derives keys along BIP32 and SLIP-10 paths, one path per supported chain, though that is not exposed in the app as multi-address management.
Yes. Cryptnox ships worldwide from the official CRYPTNOX store. Orders to Switzerland, the European Union and the United States are dispatched from stock already held in each of those regions, so the parcel does not cross a customs border into your country and there are no import duties to pay. Orders to other destinations are shipped internationally, and any import duties or local taxes are set by the destination country and are the recipient’s responsibility. Current shipping rates are shown at checkout.