Cryptnox supports ASTR as the native coin on Astar Network EVM after you add Astar once through an Add a Network or Add a Token flow. The account uses a 0x-prefixed, 20-byte EVM address. The card is not shipped with ASTR pre-enabled, and this route is not for the Astar Substrate or Polkadot-native account form. For that Astar EVM account, key creation happens inside the secure element, and the private key is not released from it.
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For ASTR, the important buying decision is not only the coin name; it is the Astar account model you plan to use. The Cryptnox Crypto Hardware Wallet – Dual-Card Set supports ASTR as the native coin on Astar Network EVM, an EVM-compatible Polkadot parachain route that uses the same 0x-prefixed address style buyers recognise from EVM wallet flows.
This page is about that Astar Network EVM route. It is not the Astar Substrate account form and not the Polkadot-native account form. If the service you are using asks for a 0x-prefixed 20-byte EVM address on Astar Network EVM, the Cryptnox route fits that account type. If it asks for a Substrate or Polkadot-native address, do not treat that as the same destination.
Astar’s own network material describes Astar Network in its network documentation, and its wallet guide explains the MetaMask setup path for Astar EVM accounts: Astar network documentation and Astar EVM wallet setup. Those references are useful when you are checking that the account you are preparing is the Astar EVM form rather than a different Astar account model.
If ASTR is one part of a wider portfolio, compare the network route here with the broader Cryptnox coin and blockchain support page before you decide which accounts to set up first.
The Dual-Card Set does not arrive with Astar already configured. For ASTR, you add Astar Network once through an Add a Network flow, or add the ASTR token once through the relevant Add a Token flow in the wallet environment you are using. After that setup step, the Astar Network EVM account is handled as a 0x-prefixed EVM account.
That setup distinction matters because ASTR can appear in contexts where the wallet model is not the same. The Cryptnox route is the EVM route for Astar Network. When a connected app or wallet interface shows the Astar Network EVM account, the address should be the 0x-prefixed 20-byte address form. The card is protecting that Astar EVM account, not creating a Substrate-style Astar account.
For product setup steps that apply before you reach the Astar-specific network choice, use the Cryptnox hardware wallet tutorials. Then apply the Astar-specific checks above when you reach the EVM network and address stage.
For an ASTR buyer, the security model centres on the private key controlling the 0x-prefixed Astar Network EVM account. That key is created within the card’s secure element and is not exported out of that element. A connected Web3 interface can request an Astar EVM action, but it does not receive the private key for the account.
The card uses an EAL6+-certified chip. For ASTR on Astar Network EVM, that chip is the protected environment where the account key is generated and retained. The result is a smart-card signing flow for the Astar EVM address rather than an ASTR setup that depends on moving the private key into a phone app or Web3 page.
When using the Cryptnox app for an ASTR flow, the phone can use its own face or fingerprint check before the card is used. The card does not contain a face sensor or fingerprint reader. The Astar EVM account remains a card-controlled account: the phone app gates use, while the secure element keeps the account key inside the card.
The form factor also matters for Astar Network EVM use. The product is a contact-and-NFC smart card, so an ASTR holder can present the card to a phone over NFC or place it in a contact reader. That dual-interface card format is different from a device that relies on a single connection method, and it keeps the Astar EVM signing step tied to the physical card.
The Dual-Card Set is shipped uninitialised, so the ASTR wallet is created during setup rather than preloaded before delivery. During that initialisation, the seed is generated inside both secure elements. The companion card therefore becomes the backup for the same Astar Network EVM wallet and the same 0x-prefixed account route.
For a buyer creating a new ASTR wallet, this avoids making a handwritten recovery phrase the default backup method. The usual setup path creates the wallet inside the two cards, with the second card ready to serve as the backup for the Astar EVM account. The private key material is not exported as part of that backup arrangement.
The standard path for ASTR is to initialise the two-card wallet and then add Astar Network EVM or ASTR in the wallet flow. Importing an existing BIP39 phrase of 12 or 24 words is an advanced option rather than the normal starting point. Buyers who want a fresh Astar EVM account can use the two-card generation route from the beginning.
If you are deciding whether to use one wallet approach across several assets, the Cryptnox hardware wallet collection places the Dual-Card Set in the wider hardware wallet range. For ASTR specifically, the account you create and back up is the Astar Network EVM account, not the Astar Substrate form.
For ASTR on Astar Network EVM, the free Cryptnox app on iOS and Android provides the card interaction while Web3 access can run through WalletConnect. The product also works with MetaMask, which is relevant because the Astar route here is the EVM account route. After Astar Network or ASTR has been added, the wallet interface should show the 0x-prefixed Astar EVM account.
The connected interface is not where the Astar EVM private key is stored. It can help you view or prepare an ASTR action, but the key for that 0x-prefixed account remains inside the card’s secure element. This is the point of pairing a Web3 interface with a smart-card signer: the interface handles interaction, while the card controls signing for the Astar Network EVM account.
MetaMask is useful for Astar Network EVM because the account format is the EVM 0x address form. The ASTR route described here depends on selecting Astar Network EVM in that environment, not another EVM network and not a Substrate-style Astar account. If the displayed address is not the 0x-prefixed EVM address you expect, pause before sending ASTR.
Buyers comparing ASTR with other EVM-oriented setups may find the Polygon hardware wallet page useful because it covers a separate network path with its own setup considerations. If you also hold RON, the Ronin hardware wallet page explains a different asset route rather than the Astar EVM account model.
ASTR buyers should treat the address format as a required part of the setup, not a cosmetic detail. The Cryptnox route uses a 0x-prefixed, 20-byte EVM address on Astar Network EVM. That is the address model to use when sending ASTR to the account controlled by the Cryptnox card.
The most common risk is assuming that every Astar-labeled destination is the same. The Astar EVM address form and a Substrate or Polkadot-native account form are different. The Cryptnox card does not turn a Substrate destination into an EVM one, and adding Astar Network EVM does not make a non-0x address the right receiving account for this product.
The check is short: ASTR, Astar Network EVM, 0x-prefixed 20-byte address. If those three items do not line up, do not treat the destination as the Cryptnox-supported ASTR route.
The Cryptnox Crypto Hardware Wallet – Dual-Card Set is the product to choose when you want a card-based ASTR setup for Astar Network EVM. It gives you a physical smart-card wallet for the 0x-prefixed Astar EVM account, a second card created as the backup during initialisation, and app-based access for WalletConnect and MetaMask flows.
For an ASTR buyer, the decision is mainly about matching the product to the right account form. Choose it for ASTR on Astar Network EVM. Do not choose it expecting the card to arrive with Astar already enabled, and do not use it as if it were creating the Astar Substrate or Polkadot-native account form. The Astar route is added once, then used as an EVM account.
The product is Swiss-engineered, and the ASTR signing experience is built around the contact-and-NFC card rather than a software-only wallet flow. The phone can handle its own face or fingerprint check through the Cryptnox app before the Astar EVM card is used, while the card remains the signer for the account.
You can buy the Cryptnox Crypto Hardware Wallet – Dual-Card Set directly from the shop product page. If you are planning wallets for several chains, compare the ASTR route with the Bitcoin hardware wallet page and the TRON hardware wallet page, because those pages cover different asset models from Astar Network EVM.
Yes. Cryptnox supports ASTR as the native coin on Astar Network EVM. You add Astar Network or ASTR once through the relevant wallet flow, then use the 0x-prefixed EVM account. This is not the Astar Substrate or Polkadot-native account form.
No. The card is not pre-programmed for ASTR. After setting up the Dual-Card Set, add Astar Network through an Add a Network flow or add ASTR through an Add a Token flow. The supported route is the Astar Network EVM route with a 0x-prefixed address.
Use a 0x-prefixed, 20-byte EVM address on Astar Network EVM. That is the address format for the Cryptnox ASTR route. Do not send to an Astar Substrate or Polkadot-native account if you intend to use this card-controlled Astar EVM account.
For the ASTR account on Astar Network EVM, the private key is created inside the card’s secure element and is not exported from it. The chip platform is EAL6+-certified, and connected Web3 interfaces do not receive the private key for the 0x-prefixed account.
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.
The Dual-Card Set is initialised by the buyer. During setup, the seed is generated inside both secure elements, so the second card becomes the backup for the same Astar Network EVM wallet. The normal new-wallet path does not require writing down a default recovery phrase.
Yes. The Cryptnox app works with MetaMask and connects to Web3 through WalletConnect. For ASTR, add or select Astar Network EVM and confirm that the account shown is the 0x-prefixed EVM address controlled by the Cryptnox card.
No. For ASTR use through the Cryptnox app, the phone can use its own face or fingerprint check before the card is used. The card itself has no face sensor or fingerprint reader; it remains a contact-and-NFC smart card for the Astar EVM account.
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.