Cryptnox black smart card with gold contact chip, NFC symbol and the Frax (FRAX) logo

Hardware Wallet for Legacy Frax Dollar (FRAX)

Does the Cryptnox wallet support Legacy Frax Dollar (FRAX)?

Yes. Cryptnox supports Legacy Frax Dollar (FRAX) by letting you add it as an ERC-20 token on Ethereum, or add the relevant EVM network and token details for another deployment. FRAX is not pre-programmed on the card. On Ethereum, use contract 0x853d955aCEf822Db058eb8505911ED77F175b99e and a 0x-prefixed 20-byte EVM address. Private keys are generated inside the secure element and never leave it.

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Cryptnox black smart card with gold contact chip, NFC symbol and the Frax (FRAX) logo
Cryptnox smart card with the Frax (FRAX) logo beside a phone showing a crypto portfolio on a desk

Add Legacy Frax Dollar as an ERC-20 token

Legacy Frax Dollar (FRAX) is holdable with the Cryptnox Crypto Hardware Wallet – Dual-Card Set as an ERC-20 token on Ethereum. FRAX is also deployed on multiple EVM chains, so setup depends on the network you intend to use. The card does not arrive with FRAX already enabled; you add the token once, or add the relevant EVM network first when the token is not being used on Ethereum.

On Ethereum, the Legacy Frax Dollar contract is 0x853d955aCEf822Db058eb8505911ED77F175b99e. The receiving address format is a 0x-prefixed 20-byte EVM address. For a buyer preparing to receive FRAX, the practical checks are the selected network, the token contract, and the receiving address controlled by the Cryptnox card.

What to add before receiving FRAX

  • Ethereum FRAX: add Legacy Frax Dollar as an ERC-20 token using the Ethereum contract address.
  • FRAX on another EVM deployment: add the EVM network first if needed, then add the token details for that deployment.
  • Receiving address: use the 0x-prefixed EVM address controlled by your Cryptnox card.
  • Final check: confirm the network and token contract before asking a sender to transfer FRAX.

The Cryptnox coin and blockchain support page explains how token additions and EVM network support fit into the Cryptnox setup path for assets such as Legacy Frax Dollar.

Cryptnox black smart card with gold contact chip, NFC symbol and the Frax (FRAX) logo, on an orange-to-blue gradient

Use the current FRAX name and verify the contract

The current asset name is Legacy Frax Dollar, with ticker FRAX. The original FRAX stablecoin is now Legacy Frax Dollar, so older references may still use the former name Frax. When you add FRAX manually, treat the visible name as a label and treat the selected network plus token contract as the decision point.

The Frax governance discussion for FIP-428 records the move to the Legacy Frax Dollar name. The project’s older FRAX v1 documentation describes the original FRAX asset, which helps when matching older references to the current token name.

Manual token-entry checks

  • Use Legacy Frax Dollar as the asset name when the interface lets you choose a display label.
  • Use FRAX as the ticker.
  • Use 0x853d955aCEf822Db058eb8505911ED77F175b99e for the Ethereum ERC-20 contract.
  • Use the token details for the specific EVM deployment if you are not using Ethereum.

FRAX should not be selected by name alone when several token lists or networks are shown. A name match can be incomplete; the token contract and network are the practical checks before you send value to a Cryptnox-controlled address.

Dual-card backup for a FRAX EVM address

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 the same wallet. For Legacy Frax Dollar, that means the backup card protects access to the same EVM address that can receive the ERC-20 token.

FRAX is not stored as a balance on the plastic card. It is a token balance on Ethereum or another EVM deployment, controlled by the private key for the 0x-prefixed address. The two-card setup matters because both cards are initialised around the same seed inside their secure elements, rather than asking you to write down a recovery phrase during the default setup.

How this applies before funding FRAX

  • Initialise the Dual-Card Set before sending FRAX to the address.
  • Confirm that both cards are part of the same wallet setup.
  • Keep the backup card separate from the card used for regular FRAX signing.
  • Use the same network and contract checks when receiving to the backed-up address.

Importing an existing BIP39 phrase with 12 or 24 words is available as an advanced option. The default Dual-Card Set setup is different: the seed is created inside both secure elements, making the second card the backup from the beginning.

Order the Cryptnox Crypto Hardware Wallet – Dual-Card Set if you want Legacy Frax Dollar held through this two-card smart-card setup.

Private-key security for Legacy Frax Dollar

When a new Cryptnox wallet is created, private keys are generated inside the secure element and never leave it. For Legacy Frax Dollar, the private key controls the EVM address that can authorise FRAX activity on Ethereum or on another EVM deployment. The token remains on the network; the card protects the key that controls the address.

The card uses an EAL6+-certified chip as the chip platform for key protection. For a FRAX holder, the practical consequence is narrow and important: the EVM private key is created and retained inside the secure element, while the Legacy Frax Dollar token balance remains associated with a 0x-prefixed EVM address.

What to review before signing a FRAX action

  • Network: Ethereum or the intended EVM deployment.
  • Token: Legacy Frax Dollar, ticker FRAX.
  • Contract: the Ethereum contract address or the correct contract for the selected EVM deployment.
  • Recipient: a 0x-prefixed EVM address when you are sending FRAX.
  • Card: the card that belongs to the wallet controlling the FRAX address.

This security model is especially relevant for manually added tokens. Adding FRAX to the interface helps you view and use the token, but control of the EVM address depends on the private key generated inside the secure element.

Use the contact and NFC smart card with the Cryptnox app

The Cryptnox wallet is a contact and NFC smart card. You can tap it to a phone, or insert it into a reader. This dual-interface format fits a FRAX workflow because the token is added and managed through an EVM account, while the physical card is used when a signature is required.

The free Cryptnox app is available on iOS and Android. Unlock in the app can use the phone’s face or fingerprint check; the card itself has no biometric sensor. That separation matters for FRAX because the phone helps run the app workflow, while the private key for the EVM address remains inside the card’s secure element.

The Cryptnox app connects to Web3 through WalletConnect and works with MetaMask. For Legacy Frax Dollar, that gives you a route to use a Cryptnox-secured EVM address in Web3 interfaces where FRAX transaction requests may be shown.

Typical FRAX setup flow

  • Install the Cryptnox app on iOS or Android.
  • Initialise both cards in the Dual-Card Set.
  • Add Ethereum, or add the EVM network used for your FRAX deployment.
  • Add Legacy Frax Dollar with the correct token contract.
  • Review the transaction details before using the card to sign.

If you are setting up the cards before receiving FRAX, the Cryptnox hardware wallet tutorials provide the product setup path to complete before adding the token and funding the address.

Cryptnox black smart card with gold contact chip, NFC symbol and the Frax (FRAX) logo

Compare FRAX setup with other asset pages

Legacy Frax Dollar setup is specific: add the ERC-20 token on Ethereum, or add the relevant EVM network and token details for another deployment. A page for a different asset should not be used as a substitute for the FRAX contract, ticker, or network checks.

If your buying question is about another network rather than Legacy Frax Dollar, use the page for that asset instead. The Polygon hardware wallet page is the better route for Polygon-focused storage questions, while the TRON hardware wallet page is for TRON-specific setup. Buyers comparing FRAX with Ronin assets can review the Ronin hardware wallet page, and BTC-focused buyers should use the Bitcoin hardware wallet page.

For a broader view of card-based storage pages beyond FRAX, the Cryptnox crypto hardware wallet collection is a useful starting point for comparing supported asset routes before you choose which page to follow.

FRAX checklist before the first transfer

Before sending Legacy Frax Dollar to a Cryptnox-controlled address, finish the card setup and token-entry steps. FRAX is not pre-programmed on the card, so the token-addition step is part of preparing the wallet rather than an optional detail to leave until later.

Before receiving Legacy Frax Dollar

  • Set up the Dual-Card Set while both cards are available.
  • Confirm that the receiving account uses a 0x-prefixed 20-byte EVM address.
  • Add Ethereum for the ERC-20 token, or add the intended EVM network first.
  • Add FRAX using the correct contract details for that network.
  • Check that the sender is using the same network you prepared in the app.
  • Keep the backup card separate after setup.

The Ethereum FRAX contract is 0x853d955aCEf822Db058eb8505911ED77F175b99e. If you use another EVM deployment, use the token details for that deployment rather than reusing the Ethereum contract as a general identifier. The address format remains EVM-style, but the network and token contract still need to match the transfer route.

After these checks, the Cryptnox card signs for the EVM address whose private key was generated inside the secure element. The backup card belongs to the same wallet because the seed was generated inside both secure elements during the Dual-Card Set setup.

Frequently asked questions

Is Legacy Frax Dollar pre-programmed on the Cryptnox card?

No. Legacy Frax Dollar is not pre-programmed on the card. Add it once as an ERC-20 token on Ethereum, or add the relevant EVM network first and then add the token for that deployment. On Ethereum, use contract 0x853d955aCEf822Db058eb8505911ED77F175b99e.

What address format does FRAX use with Cryptnox?

Legacy Frax Dollar uses a 0x-prefixed 20-byte EVM address when held as an ERC-20 token on Ethereum or on another EVM deployment. Before receiving FRAX, confirm both the address and the network, because the token must be sent using the network you prepared in the app.

What is the Ethereum contract address for Legacy Frax Dollar?

The Ethereum ERC-20 contract address for Legacy Frax Dollar (FRAX) is 0x853d955aCEf822Db058eb8505911ED77F175b99e. When adding the token manually, rely on the contract address and the selected network rather than the displayed token name alone.

How does the second Cryptnox card back up my FRAX wallet?

The Dual-Card Set ships uninitialised. During setup, the seed is generated inside both secure elements, so the second card is the backup for the same wallet. FRAX remains on Ethereum or another EVM deployment; the cards protect the private key controlling the EVM address.

Can I use WalletConnect or MetaMask with FRAX?

Yes. The free Cryptnox app connects to Web3 through WalletConnect and works with MetaMask. For FRAX, that helps when an EVM interface asks for a transaction from the address controlled by the card. Review the network, contract, amount, and recipient before signing.

Does the Cryptnox card have its own fingerprint or face sensor?

No. Unlock in the Cryptnox app uses the phone’s face or fingerprint check, and the card itself has no biometric sensor. The card’s job is to protect the private key inside the secure element and sign the FRAX-related transaction after the app workflow requests approval.

Can I import an existing wallet that already holds FRAX?

Importing an existing BIP39 phrase with 12 or 24 words is available as an advanced option. The default Dual-Card Set setup creates the seed inside both secure elements instead, so the second card becomes the backup for the same EVM address from the start.

Is the Cryptnox wallet an HD wallet with a new receive address for each transaction?

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.

Does Cryptnox ship worldwide, and will I pay import duties?

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.