Cryptnox supports LayerZero ZRO as a manually added EVM token on Ethereum, Arbitrum, Optimism, Base, and other equivalent EVM deployments. ZRO is not pre-programmed on the cards. Add the relevant EVM network or add the ZRO token once, then use the Cryptnox smart card to sign from an 0x-prefixed EVM address. Private keys are generated inside the secure element and never leave it.
CRYPTNOX products are also available worldwide through our official Amazon stores.
LayerZero ZRO is held with Cryptnox as an ERC-20 / LayerZero OFT token on EVM chains. The account format is an 0x-prefixed 20-byte EVM address, so the same address style applies when you hold ZRO on Ethereum, Arbitrum, Optimism, Base, or another equivalent EVM deployment that you add manually.
The cards do not arrive with ZRO already set up. A ZRO buyer adds the EVM network or token before receiving, sending, or signing a ZRO transaction. The commonly referenced ZRO contract is 0x6985884c4392d348587b19cb9eaaf157f13271cd, with Ethereum token details shown on Etherscan for the ZRO token contract.
Before buying, compare ZRO’s manual EVM-token route with the broader Cryptnox coin and blockchain support page so you can see how manually added EVM assets sit alongside other supported networks.
ZRO setup starts with the chain. If the EVM chain where you hold ZRO is already available in your wallet environment, add ZRO as a token on that chain. If the chain is not present yet, add the EVM network first, then add the ZRO token contract for that exact network.
This matters because ZRO can appear on several EVM chains while still using the same 0x-style address format. A ZRO balance on Ethereum is not the same chain balance as ZRO on Arbitrum, Optimism, or Base. The address can look familiar, but the selected network determines which token contract and balance you are using.
For setup steps, use the Cryptnox hardware wallet tutorials when adding an EVM network, adding a token, or preparing a WalletConnect session for a ZRO transaction.
The Cryptnox Crypto Hardware Wallet – Dual-Card Set generates private keys inside the secure element, and those private keys never leave it. For ZRO, that means the key controlling your 0x EVM address is not copied into the phone, browser, or connected Web3 tool when you prepare a transaction.
The hardware platform uses an EAL6+-certified chip. The certification applies to the chip platform. ZRO transfers and EVM contract interactions are signed by the card, with the secure element remaining the place where the private key is created and kept.
When you sign a ZRO transaction, the chain context should be checked first. A transaction prepared for Ethereum ZRO should not be treated as interchangeable with a transaction prepared for Arbitrum, Optimism, or Base. The address format may be the same, but the selected EVM network changes the token balance and contract involved.
For ZRO holders who use several EVM chains, the practical security point is key isolation. You can add the ZRO token manually on the chain you use, connect for Web3 activity when needed, and still keep the private key inside the card’s secure element.
The Dual-Card Set ships uninitialised. During setup, the wallet seed is generated inside both secure elements, so the second card becomes the backup for the same wallet from the beginning. By default, you do not write down a recovery phrase to create the ZRO wallet backup.
That backup model is important for an EVM token such as ZRO because the same Cryptnox-controlled 0x address can be used on multiple EVM chains. If ZRO is held at that address on Ethereum, Arbitrum, Optimism, Base, or another added EVM deployment, the backup card signs for the same wallet account. It is not a second ZRO address unless you create a different wallet.
Importing an existing BIP39 recovery phrase is available as an advanced option, but the Dual-Card Set’s default ZRO setup is the two-card generation process described above. Buyers who want that backup structure can order the Cryptnox Crypto Hardware Wallet – Dual-Card Set from the Cryptnox shop.
For ZRO activity, the free Cryptnox app on iOS and Android is the bridge between the smart card and EVM wallet workflows. It connects to Web3 via WalletConnect and works with MetaMask, so a ZRO holder can use the Cryptnox card for signing while interacting with EVM tools that show the selected chain and token contract.
Unlock for card use relies on the phone’s face or fingerprint check through the Cryptnox app. The card itself has no fingerprint or face sensor. For a ZRO transaction, the useful result is that the phone handles the local unlock step while the card remains the signing device for the EVM account.
The card is a contact and NFC smart card. You can tap it to a phone for mobile ZRO signing or insert it into a reader for a reader-based workflow. In either case, the ZRO account key remains inside the secure element.
If ZRO is one part of a wider EVM setup, the crypto hardware wallet collection helps place the Cryptnox smart-card model next to other asset pages without treating ZRO as a pre-loaded token.
ZRO belongs on this page because it is an ERC-20 / LayerZero OFT token on EVM chains, not because the card ships with a dedicated ZRO account mode. LayerZero publishes OFT reference material in its OFT documentation, and the wallet-relevant detail is the EVM route: add the chain or token, then use the Cryptnox-controlled 0x address.
The contract address must match the network you intend to use. Ethereum, Arbitrum, Optimism, and Base are separate EVM chain contexts even when the visible account address has the same 0x format. Sending ZRO to the correct address on the wrong chain is still the wrong route for the balance you expected to use.
This is different from assets with their own non-EVM account systems. A buyer comparing ZRO with Polygon can review the hardware wallet for Polygon page because Polygon follows an EVM-style account model. A buyer also holding TRON should use the separate hardware wallet for TRON page because TRON does not use the same ZRO address format described here.
The Cryptnox Crypto Hardware Wallet – Dual-Card Set is suited to a ZRO buyer who wants an EVM token held behind a secure-element smart card and is comfortable adding the token manually. The cards are Swiss-engineered, use a contact and NFC smart-card form factor, and create private keys inside the secure element.
The main ZRO buying decision is operational: you select the EVM chain, add the network or token once, and confirm the 0x address before receiving funds. Cryptnox supplies the signing card, the paired backup card, the iOS and Android app, and the Web3 connection route through WalletConnect and MetaMask. It does not turn ZRO into a pre-programmed asset on arrival.
If your holdings extend beyond ZRO, compare the account model before assuming the same setup applies everywhere. Bitcoin uses a different model, covered on the hardware wallet for Bitcoin page. Ronin is covered separately on the hardware wallet for Ronin page. For LayerZero ZRO, the relevant path is EVM token setup plus Cryptnox card signing.
No. ZRO is not pre-programmed on the cards. After setting up the Dual-Card Set, add the EVM network or add ZRO as a token on the chain you intend to use, such as Ethereum, Arbitrum, Optimism, or Base.
Use an 0x-prefixed 20-byte EVM address controlled by your Cryptnox wallet. That address format applies when holding ZRO on EVM chains. Always check the selected network and the ZRO token contract before receiving, sending, or signing a transaction.
The Dual-Card Set ships uninitialised, and setup generates the wallet seed inside both secure elements. The second card is therefore the backup for the same wallet. If your ZRO is held by that wallet’s 0x EVM address, the backup card can sign for the same address.
Yes. The free Cryptnox app connects to Web3 via WalletConnect and works with MetaMask. For ZRO, set MetaMask to the EVM chain where the token exists and add the correct ZRO contract for that network before signing with the card.
Private keys are generated inside the secure element and never leave it. The card signs for the EVM account that controls your ZRO, but the private key is not exported to the phone, browser, connected wallet, or Web3 application.
No. The card itself has no fingerprint or face sensor. Unlock uses the phone’s face or fingerprint check through the Cryptnox app, while the contact and NFC smart card remains the device that signs ZRO transactions.
Importing an existing 12- or 24-word BIP39 recovery phrase is an advanced option. The default Dual-Card Set setup generates the wallet seed inside both secure elements, so the second card is the backup without requiring a recovery phrase to be written down 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.