Summary
Everything this seed backup solution supports, grouped by category.
Cryptosteel
Headquartered in United KingdomCryptosteel is one of the original metal seed backup brands, having launched the Cryptosteel Cassette in 2015 as an early standard for storing Bitcoin seed phrases on steel. Its products include the cylindrical Cryptosteel Capsule and the Cryptosteel Cassette, both made from AISI 303/304 stainless steel and assembled with letter tiles to store a 24-word seed abbreviated to four letters per word. The devices are designed to withstand fire, corrosion and physical damage for long-term offline storage.
Every spec, organized
Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.
Payment Methods to buy the device
Which methods of payments you can use to buy the device on the official website
BTC On Chain
YES (via BTCPay)
Accepts Bitcoin payments via on-chain transactions.
BTC Lightning
YES (via BTCPay)
Accepts Bitcoin payments via the Lightning Network for faster and cheaper transactions.
Alt Coins
YES (via BTCPay)
Accepts payments in alternative cryptocurrencies other than Bitcoin.
Credit/Debit Card
YES
Accepts traditional credit and debit card payments.
Size & Materials
Weight
480g / 16.9oz
Dimensions
253 x 182 x 27 mm
Length x Width x Height
- Length: the longest side of the device
- Width: the shorter side of the device
- Height: the vertical dimension of the device
Materials
Stainless Steel
Include All Tools
YES
Whether all necessary tools for setup and engraving are included in the package.
Water-proof
YES
Resistant to water damage and can withstand flooding or water exposure.
Fire-proof
Partially
Resistant to high temperatures and fire damage, protecting your seed phrase in case of fire.
Official Documentation
Industrial-grade stainless steel plates can resist fire and temperature as high as 2649 °F / 1454 °C.
Crush-proof
NO
Resistant to physical crushing and compression forces.
Official Documentation
Corrosion-proof
YES
Resistant to corrosion from chemicals, salt water, and environmental factors.
Shock-proof
?
Resistant to impact and shock damage from drops or physical trauma.
Stress tests
YES
Has undergone rigorous stress testing to verify durability claims.
Official Documentation
Security
PIN Protection
NO
Offers PIN-based access control to protect your seed phrase from unauthorized access.
Encrypted Backup
NO
Supports encrypted storage of your seed phrase for additional security.
Tamper Evident Seal
Partially
Features tamper-evident sealing to detect if the backup has been compromised.
Official Documentation
2 Lock Hole. The device has 2 holes that you can use to secure with padlocks (not included)
Capacity
Multiple Private Keys
NO
Supports storing multiple seed phrases or private keys in a single device.
Backup Compatibility
Output Descriptor
NO
Supports backing up wallet output descriptors that define how to generate addresses and spend funds.
12 Words BIP-39
YES
Supports backing up 12-word BIP-39 seed phrases.
24 Words BIP-39
YES
Supports backing up 24-word BIP-39 seed phrases.
Seed QR
NO
Supports backing up seed phrases encoded as QR codes.
Shamir Backup SLIP-39
1 share
Supports backing up Shamir's Secret Sharing scheme (SLIP-39).
Hexadecimal Strings
NO
Supports backing up hexadecimal strings.
ASCII Strings
YES (up to 96 chars)
Supports backing up ASCII text strings.
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