Bitcoin Bazar
SeedSigner - SmartCard Extension Kit
SeedSigner - SmartCard Extension Kit
Couldn't load pickup availability
A smart card reader for your SeedSigner
Unleash the full power of your existing Seedsigner with this smart card kit.
This kit allows you to use Satochip products and other Javacards directly with your SeedSigner. Manage all your seeds with Seedkeeper and use your Satochip to sign your transactions securely.
The dilemma of seed storage
A smart card approach
The problem: how to store private keys securely, resiliently, and easily?
Different wallets have tried different solutions. SeedQR , for example, has gained popularity due to its speed and convenience compared to traditional mnemonic phrases. However, relying solely on SeedQR raises its own questions regarding security, sustainability, and privacy.
A more balanced approach is to store secrets on a PIN-protected JavaCard, like Seedkeeper🔗. This method combines enhanced security with practicality, offering an affordable, reliable, and accessible solution for everyday users—without the hassle of managing multiple seeds or compromising security.
Boost your SeedSigner with smart cards
Easily manage all your seeds
By boosting your SeedSigner with smart card support, you can manage all your seeds with Seedkeeper and even sign your Bitcoin transactions with Satochip.
With this configuration, you can:
- Sign transactions and verify PSBTs directly with your card. Satochip 🔗 ;
- Sign messages and export xpubs (for single or multisig wallets) with full address browser integration;
- Manage all your seeds, wallet descriptors and secrets with Seedkeeper 🔗 ;
- Use Seedkeeper with Electrum seeds, including support for separate passphrases and encrypted QR codes.
Using smart cards with SeedSigner requires only a few adjustments: you will need a smart card reader and dedicated SeedSigner firmware incorporating all Satochip features.
The good news? This kit contains everything you need to get started.
The kit contains:
- 1 × SeedSigner equipped with an integrated card reader
- 1 x SD card for making your AirGaped transactions
- 1 x micro-USB cable to power the device
- 1 × blank smart card DIY
In stock
Delivery to Relay Points and Lockers
Delivery to Relay Points and Lockers
Our goal is to let those who wish receive their order without revealing their personal details.
If you live in France: on the checkout page, choose the “Pickup point” tab and select the pickup point or locker you prefer.
If you live in Luxembourg, Belgium, Germany, Austria, Spain, Italy, the Netherlands, Poland or Portugal: pickup points and lockers are available too, but the steps are different.
- Stay on the “Ship” tab. Do not use the “Pickup point” tab, it only works in France.
- Enter a normal street address in your country, close to the point you want if you prefer not to give yours: it is only used to find nearby points and calculate the rate.
- In the shipping methods that appear, choose “Delivery to a pickup point (choice after payment)”.
- Once payment is complete, the list of pickup points and lockers near that address is shown: pick yours.
See the full guide: locker delivery in France and across Europe →
