Crafted from space-grade steel, the new Seed12 is designed to last for generations. As the latest offering from Cryptosteel, it provides the simplest and most affordable way for securing your Bitcoin seed phrase and other sensitive information with lifelong protection. It is nearly indestructible, highly compact, and modular.
- Protect All Your Keys and Passwords
- A New Standard with Security Kit
- Product Specifications
- A Flexible Kit for Consumers
- Order First & Win $100
With over 10 years of active R&D and 100,000+ units sold, Cryptosteel has not only met industry security standards but has built them. Cryptosteel products are trusted by worldwide consumers, businesses, and the Bitcoin & altcoin communities, ensuring ultimate peace of mind in securing generational wealth for 100+ years to come.
Protect All Your Keys & Passwords
Finally, the ultimate recovery backup option exists. It’s time for you to be in control, protect yourself and self-custody with Seed12. Assembled in minutes, this new metal backup is built to last generations.
You can now easily protect your mnemonic recovery seed offline, ideal for software, hardware and Lightning wallets, passphrases, Nostr keys and master passwords. It’s the simple, secure and ultimate way to safekeep your secrets for years to come.
Seed12 is now the world’s most accessible way to back up your digital assets, whether you’re using Coinbase, Trezor, Ledger or Blockstream. You can now sleep at night knowing your data is the safest it’s ever been.
“From the very beginning, Cryptosteel has been dedicated to protecting private keys, addressing a fundamental need for users of self-custody. Seed12 is the pinnacle of that commitment, combining the best features of our proven products, trusted by hundreds of thousands of users over the years, with an even more accessible price point. With Seed12, we’ve created a backup solution that is not only stronger and more versatile but also more affordable. Finally, the ultimate backup for your bitcoin & digital assets is here.” — Wojciech Stopinski, Inventor of Cryptosteel
A New Standard with Security Kit
For only 49€, the Seed12 Security Kit is the best way to back up your data today. Made from aerospace-grade stainless steel, Seed12 is safe from cyberattacks and online threats, giving you peace of mind.
Packaged in a matchbox-sized case, this compact backup system requires no tools, such as hammers or sharp punch, making it easy and safe to set up. As one of the smallest backup kits ever designed, it is also erasable and reusable, built with a modular tile system for easy error correction.
Everything is included for a fully secured metal backup. Assemble your backup by threading character tiles onto the core, encasing them in a protective capsule, wrapped in a tamper-proof
Seal.
Product Specifications
Seed12 Backup Core Basic unit to create basic metal backup. All parts are made of space-grade stainless steel. The package includes: 1 x Seed12 core, 4 x cotter-pins, 12+ x separators and 310+ double-sided letter tiles (Aa-Zz latin alphabet), printed user manual
Seed12 Security Kit. The Security Kit is our solution for providing the highest level of protection for your 12-word seed phrase restore backup.
In the Kit you’ll find: 1 x System Backup Core unit, 1 x Capsule Container, 1 x Security Seal module (three seals with the precut wire)
Shell capsule. An hermetically sealed, protective shell made from space-grade stainless steel, designed to safeguard your backup core. Capable of withstanding pressures over 12 tons, it includes holes for tamper-proof sealing, its grooved surface ensures less fingerprints marks.
Security seals. A set of three tamper-evident security seals for your backup. PSW-97® Security Seal by American Casting & Manufacturing Corp. Lock it easily without tools and benefit from its nearly 45 kg (100 lbs) breaking strength. Experience clear tamper evidence and exceptional durability, trusted by thousands of private, military, and government entities.
Core parts for metal backup creation. The set includes one Seed12 core, four cotter pins, and over 12 separators. Tiles are not included.
Letter tiles with upper and lower case (Aa-Zz) Latin alphabet. The set includes over 300 double-sided letter tiles, from A to Z, with an uppercase letter on the obverse and a lowercase on the reverse. Deeply embossed for better readability and durability. The arrangement of letters tiles is partially random.
Symbol tiles from ASCII printable character set. The set includes over 80 double-sided number tiles ! ” # $ % & ‘ ( ) * + , – . / : ; < = > ? @ [ \ ] ^ _ ` { | } ~ Deeply embossed for better readability and durability. The arrangement of number tiles is partially random.
Number tiles from 0 to 9. The set includes over 100 double-sided number tiles, from 0 to 9, Deeply embossed for better readability and durability. The arrangement of number tiles is partially random.
The Cryptosteel Seed12 metal backup is the world’s most flexible, durable, and affordable way to back up your data, whether your mnemonic seed, wallets, passphrases, Nostr keys and master passwords.
A Flexible Kit for Consumers
Like drag and drop, Seed12 is flexible and works for you. Need more tiles, an extra capsule or a new tamper-proof seal? Easily get what you need and only pay for what you use. Starting at 9€ on the official Cryptosteel store.
Core parts, letter, number and symbol tiles, as well as the shell capsule and security seals can be purchased individually. Anytime you’d like. Shipped straight to your door, with delivery as fast as the next day or within 3-4 days. Visit the Seed12 product page to learn more.
“Cryptosteel has always been innovators and produces excellent products to help people secure private keys. They’re constantly advancing the state of the art of cold storage.”—Samson Mow CEO at Jan3
Order First & Win $100
Order within the next 48 hours or be among the first 500 buyers for a chance to win $100 worth of Cryptosteel products. Ten lucky winners will be selected to receive this prize, which can be redeemed on our website. Don’t miss out, listen to our favorite cypherpunk, Adam Back, Co-Founder & CEO at Blockstream and “back it up on a Cryptosteel.”