Backup card
Physical backup for your digital assets
Physical backup for your digital assets
Backing up your Bitcoin and crypto wallet is crucial. It guarantees that your funds can be recovered if your hardware wallet is lost or damaged.
By default, the Bluhm backs up data on a microSD card. You can also create an additional physical backup by writing down 24 recovery words. This is an excellent option as it is interoperable, transparent, and, depending on the material used, can last for generations.
Our backup card simplifies the process of creating a handwritten backup. It's printed on durable, aging-resistant cardboard and can be laminated without a machine for extra protection. Privacy is a priority, so there’s no mention of Bitcoin or cryptocurrencies on the outside. The instructions inside, along with the included booklet, guide you through every step of backing up your wallet.
Our free community version of the Backup Card. Simply download and print it to secure your everyday wallets.
The professional version of the Backup Card is printed on durable, aging-resistant cardboard and features no-machine lamination for extra protection. Ideal for securing your long-term wallets.
Writing down the 24 recovery words isn’t always straightforward and requires specific precautions. The same applies when recovering your wallet—whether by you or someone else, potentially long into the future.
A backup must endure the passage of time. The backup card is made from premium, high-quality cardboard that is both chlorine-free and acid-free, ensuring its longevity. It is sourced from a specialized paper manufacturer with over 100 years of experience.
The backup card is crafted from fine 270 g/m² cardboard, used in three layers for the outer cover and backup inlay, resulting in a sturdy, durable card. The included cold-lamination pouch provides essential protection against moisture and physical wear, and it doesn’t require a lamination machine.
The Steelwallet is an apocalypse-proof backup card. Made from stainless steel, it safeguards your recovery words against fire, water, electric shocks, corrosion, and virtually any challenge nature can throw at it.
microSD card
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Backup card
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Steelwallet
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Steelwallet Pro
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Tamper-evident bags
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| When to use | Standard backup method for the Bluhm, quick and reliable | Professional, age-resistant option for long-term wallet backups stored in a secure location | A durable backup designed to withstand almost any conditions | Heavy-duty, reusable steel backup built to last generations | Provides protection against undetected access and hidden tampering |
Compatibility: Works with any BIP39-compliant wallet
Size of laminated card: 85 × 118 mm
Size of retail package: 120 × 130 mm
Includes: 1 booklet, 1 cover, 2 inlays, 1 lamination pouch
Weight: 22g
Includes: 1 booklet, 3 covers, 4 inlays, 3 lamination pouches
Weight: 45g