Backup card

Physical backup for your digital assets

Backup card laminated booklet

Backup your hardware wallet

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.

Backup card

Backup Card

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.

Backup Card

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.

Backup card includes

Features

Clear instructions

Easy-to-follow instructions

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.

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Ageing Resistant

Age-resistant

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.

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Lamination protection

Lamination protection

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.

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Steelwallet apocalypse-resistant

Need even more protection?

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.

Steelwallet

Overview of all backup options

microSD card
mircoSD backup card shop.bitbox.swiss/en/products/microsd-backup-cards-2-pack-10/
Backup card
Backup card laminated booklet /backupcard/
Steelwallet
Steelwallet /steelwallet/
Steelwallet Pro
Steelwallet Pro /steelwallet-pro/
Tamper-evident bags
Tamper-evident security bags /tamper-evident-bags/
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

Technical Specifications

Compatibility: Works with any BIP39-compliant wallet

Size of laminated card: 85 × 118 mm

Size of retail package: 120 × 130 mm

Backup Card (Single Pack)

Includes: 1 booklet, 1 cover, 2 inlays, 1 lamination pouch

Weight: 22g

Backup Card (3-Pack)

Includes: 1 booklet, 3 covers, 4 inlays, 3 lamination pouches

Weight: 45g