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Never Been Hacked

Never been hacked.Cards & Rings.

Cards and rings that have never been hacked — anywhere in the world. Seedless recovery, 100% offline signing, military-grade security. Worldwide shipping.

Get Your Vault Explore Features
Maria-Nova Vault — Hardware Cards & Rings
0 Hacked Users 100% Offline EAL6+ Certified Chip Seedless Recovery NFC Tap-to-Sign 1000+ Coins Supported 0 Hacked Users 100% Offline EAL6+ Certified Chip Seedless Recovery NFC Tap-to-Sign 1000+ Coins Supported
Products

Ways to Secure

Every tier powered by military-grade NFC technology. Choose your level of protection.

Basic
Tier 01
Basic — 2-Card Set
Start your crypto security journey with the essentials.
$54.90 one-time
  • 2 NFC secure cards
  • Seedless recovery
  • 100% offline signing
  • Multi-coin support
Most Popular
Pro
Tier 02
Pro — 3-Card Bundle
Maximum redundancy with three cards for ultimate backup security.
$69.90 one-time
  • 3 NFC secure cards
  • Advanced backup system
  • Seedless recovery
  • Priority support
Business
Tier 03
Business — Ring + 2 Cards
Wearable security. Titanium ring plus two backup cards.
$160.00 one-time
  • 1 titanium ring + 2 cards
  • Wearable NFC security
  • Seedless recovery
  • Premium support
Cardholder
Accessory
Napa Leather Cardholder
Sleek black exterior, bold blue interior. Holds up to 4 cards.
$54.90 one-time
  • Premium Napa leather
  • RFID-blocking protection
  • Holds up to 4 cards
  • Slim, pocket-friendly design
Engineering

Built Like a Vault

Every component selected for maximum security. Zero compromises.

EAL6+ Certified Chip

The same security standard used in passports, credit cards, and government IDs. The chip generates and stores private keys inside the card — they never leave.

Offline Signing

Transactions signed on the card. Zero internet exposure.

Instant NFC Tap

Tap to phone. No cables, no Bluetooth, no batteries.

Seedless Recovery

No seed phrase. Recover with backup cards. Simple.

Multi-Coin + Multi-Wallet

Bitcoin, Ethereum, USDC, BNB, SOL and 1000+ tokens across multiple networks. Manage up to 3 wallets per card set with seamless tap-to-switch.

Get Started

Set Up in Under 2 Minutes

No seed phrase to write down. No cables. Just tap and go.

1

Download the App

Get the free Maria-Nova Vault app from the App Store or Google Play.

Download on theApp Store GET IT ONGoogle Play
2

Tap Your Card

Hold the card to the NFC area on the back of your phone.

3

Create Your Wallet

Keys are generated inside the card's secure chip. No seed phrase, ever.

4

Set an Access Code

Add a PIN or biometric lock so only you can open your wallet.

5

Add Backup Cards

Tap your 2nd and 3rd cards to link them as instant backups.

Full guide in the app — every step is confirmed on-screen as you go.

Earn While You Hold

Dust Miner

Small balances scattered across chains? Consolidate them automatically into USDT and put your crypto to work.

⚡ Calculate Your Dust

Loading live prices...
Estimated value —
Network fee (est.) —
You receive in USDT —

Open your wallet app → Exchange tab → Swap to USDT TRC20.
Lower fees, direct in your wallet, no third-party redirect.

✓ Supported Coins
USDT · TRC20 BTC ETH SOL BNB LTC DOGE

USDT arrives directly in your TRC20 wallet after sweep. No withdrawal needed — ChangeNOW handles it automatically.

How It Works

What is dust?

Small leftover crypto balances too small to trade normally — but together they can add up to real money.

Swap in Your Wallet

Swap directly in your wallet app to USDT TRC20 — the lowest-fee stablecoin. Lower fees than third-party services.

  1. Enter your dust amount and chain above
  2. Click "Swap in Your Wallet" for guidance
  3. Open your wallet app → Exchange tab → swap to USDT TRC20
  4. USDT arrives directly in your wallet — low fees, no middleman

Live prices via CoinGecko. Swaps performed in your wallet for lowest fees. USDT TRC20 = lowest network fees. Not available in all regions.

⚡ Swap in Your Wallet

To convert your BTC to USDT TRC20 with the lowest fees:

  1. Open your your wallet app
  2. Go to the Exchange tab
  3. Select BTC → USDT (TRC20)
  4. Enter the amount and confirm

💡 Swapping directly in your wallet costs significantly less than third-party services. Your USDT arrives directly in your wallet.

Download App →
Questions

Everything You Need to Know

Download the free Maria-Nova Vault app, tap your card to your phone's NFC area, and follow the on-screen steps. See our full 2-minute setup guide above for details.
You restore access with your backup cards. Each set comes with 2-3 cards — lose one, use the others to recover.
No. It's cryptographically impossible. Each card has a unique secure chip that cannot be cloned or duplicated.
No. Maria-Nova Vault uses seedless technology. Your backup cards are your recovery method — no 12 or 24 words to write down and protect.
Up to 3 cards per wallet. The Pro bundle includes 3 cards for maximum redundancy.
Yes. 100% offline signing. The card never connects to the internet. Transactions are signed on the card's secure chip.
Get in Touch

Ready to Secure Your Crypto?

Questions? Support? Partnerships? We're here to help.

support@cryptovault.se All emails forwarded to our team

Shipping Details

We need this to ship your hardware wallet. Your payment happens next, on the crypto invoice page.

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Vault Support
Maria-Nova Vault's help & knowledge bot