Cryptosteel Cassette vs Trezor Keep
Key differences
- Trezor Keep is more affordable at $89 and includes tools, while the Cassette costs around $179 and uses a tile system that needs no hammer.
- The Cassette is reusable and supports 12–24 word BIP39 seeds, while Trezor Keep is single-use and only supports 12-word seeds unless you buy two.
- The Cassette is rated to 1400°C fire resistance, while Trezor Keep is rated to 870°C but includes tamper-evident seals for added security.
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Price
159€ / ~179$
$89
Technical Specifications
Dimensions
105x60x5.7 mm
85 x 54 x 1.5 mm
Weight
208g
70g
Materials
Stainless Steel
AISI 304 aerospace-grade stainless steel with black surface treatment
Box Includes
270+ tiles, 1 cassette, Packaging for storage, Instructions, 6 blank tiles
Trezor Keep steel wallet, Security seals, Hammer, Instruction manual
Usage
Entry Method
Steel character tiles
Manual punching of first 4 letters
Error Handling
Temporary → simply remove the tile and fix it
Permanent → once punched, errors are irreversible
Tools Required
No external tools needed, simple to use without specialized tools
Requires hammer & pre-marking pen (included)
Reusability
Reusable → tiles can be removed and replaced
Single-use → punched letters are permanent
Durability
Fire Resistance
Up to 1400 °C (2500 °F)
Up to 870°C (1,600°F)
Water & Corrosion Resistance
Resistance to physical damage, including fire, flooding, corrosive conditions, electric shock and impact from accidents
Water, acid, alkali & corrosion resistant
Real World Proofs
Solid design, enough letters. Contains empty tiles in case you have words consisting of only 3 letters in your backup.
None available
Compatibility
Backup Types
12, 18, 24 word BIP39
BIP39 / SLIP39 seed phrases
Seed Compatibility
BIP39 (12, 18, 24-word phrases)
SLIP39 (20-word shares)
Wallet Compatibility
Compatible with leading hardware wallets from Trezor, Blockstream Jade, Bitbox, Ledger, and popular crypto applications.
Trezor Safe 5, Safe 3, Model T
Security Features
Tamper Evidence
Tamper-evident security seals included
Company Details
Manufacturer
Cryptosteel
SatoshiLabs
Founded
2013
2023
Billfodl
Cryptotag Zeus