Cryptosteel Capsule Duo - Private Key Back Up Device

Regular price £175.00 £145.00

Availability: In Stock Out of Stock

Product Type: Seed Phrase Back Up Device

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Product Details


The Cryptosteel Capsule Duo contains two capsules and a double set of steel character tiles that can be used to store your password or seed phrase.

A double set of stainless steel capsules increase your security by adding a redundancy option.

One Capsule can store a seed phrase or password composed of 24 words abbreviated to the first 4 letters. Get an extra Capsule Container and maximize your investment.

Cryptosteel Capsule is the premier backup tool for autonomous offline storage of valuable data without any third-party involvement.

The solid metal device, designed to survive extreme conditions, works under nearly all circumstances.

It is compatible with most secret sharing and key generation algorithms.

The Capsule offers more capacity than most other solutions in its class while being smaller, lighter, and more durable.

And it comes with a full ASCII character set (96 characters, including space) supporting random passwords with numbers and symbols.

All of the characters are deeply stamped into the tiles to provide maximum longevity.

 All Cryptosteel products will be shipped from either the USA, UK or EU warehouse based on your location. There will be no customs or duty charges if you are within these locations.

Backup type compatibility


100% coverage for:

  • BIP39 (unabbreviated 12-word recovery seeds or 4-letter abbreviations of 24-word recovery seeds)
  • Shamir Backup SLIP39 (4-letter abbreviations of 20-word recovery seeds)
  • BIP32 root keys
  • WIF private keys
  • Monero mnemonic seeds (4-letter abbreviations of 25-word recovery seeds)

more than 99% coverage for:

  • hexadecimal strings up to 123 characters
  • random ASCII strings up to 55 characters


Capsule dimensions: 102mm x 16m
Solid metal construction 

100% stainless steel

Shell made of AISI 303

Weight 1.6lbs


  • Delivery in 2-3 days
  • Next/Same day shipping
  • From USA, EU and UK Warehouses


  • Full Customer Support before and after purchase
  • Worldwide Delivery via Tracked Courier service
  • 6 Months Warranty
  • 100% Customer Satisfaction - 5 Star Customer Reviews

All sales are final, no refunds will be granted.

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