Cryptosteel Cassette Solo

The Cryptosteel Cassette is the product that started it all, establishing the market for offline metal wallets.

The Cassette is a pocket-sized stainless steel unit designed to securely store alphanumeric data of your choice, without the need for specialized tools or third-party involvement. Each unit comes with its own set of stainless steel tiles engraved on each side.

Codes and passwords are manually assembled from the included partially randomized set of characters. You can quickly store up to 96 characters, ensuring the security and protection of your data.
Once a desired sequence is stored in the Cassette, it essentially gains offline permanence status and is resistant to physical damage, including fire, floods, corrosive conditions, electric shock, and accidental impact.

Product Specifications

• Cassette Dimensions: 106x60x6 mm
• Cassette and tiles are made of AISI 304
• Tiles consist of all uppercase Latin alphabet letters (A-Z)

Packaging Specifications

• Weight: 455 g / 1 lb
• Dimensions: 160 x 120 x 20 mm / 6.3 x 4.7 x 0.8 in

Contents:
1 x Cryptosteel Cassette Unit
1 x Letter Set (approx. 800 tiles)

Optimized for Recovery Seed Phrases

Your 12-24 word recovery seed phrase is based on Bitcoin Improvement Proposal 39, known as BIP39, which allows for the use of a language-based mnemonic phrase that serves as a backup in case your wallet is lost or becomes unusable.

The words are selected from a special list of 2,048 common English words. While not all words have exactly four letters, each has been chosen so that the first four characters uniquely identify each word. This also applies to the occasionally occurring three-letter words where the fourth character is blank. So, if you have four tiles, you have your word.

Cryptosteel Mnemonic can store up to 96 characters. This is exactly what you need to store a 24-word list in the BIP39 protocol. Each Mnemonic tile set contains an optimized number and distribution of characters for maximum functionality and ease of use. The kits are partially randomized for an additional layer of security.