Smartcard Hat Kit

€ 69,00 inc. Vat

Extend the capabilities of your Seedsigner with this Smartcard Hat Kit.
The Smartcard Hat in this Kit allows your SeedSigner to interact directly with Satochip products and DIY Smartcards.

The kit contains:

  • 1 x dual slots Smartcard Hat for your existing Seedsigner
  • 1 x black 3D printed case for extended SeedSigner (Modified Open Pill)
  • 1 x DIY smartcard

In stock

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Additional Information

Introducing the Smartcard Hat Kit: Elevate Your SeedSigner Experience

We’re excited to offer the Smartcard Hat Kit, a seamless extension for your SeedSigner that brings smartcard integration to your setup. Designed for enthusiasts who prioritize secure, offline bitcoin storage, this kit unlocks new ways to manage and protect your corn with enhanced hardware capabilities. At the heart of the kit is the dual-slot Smartcard Hat, which slots effortlessly between your Raspberry Pi Zero and the display hat. It provides a CCID/PCSC-compatible interface with slots for both standard ID-1 cards (like bank cards) and smaller ID-000 SIM-sized cards, plus a handy USB-C port for power. To keep your expanded device protected, we’ve included a sleek, matte-black 3D-printed case (Designed by CryptoGuide), modified from the popular Open Pill design.
Rounding out the package is a versatile DIY JavaCard smartcard, shipped unlocked with default keys, ready for you to load applets directly via your SeedSigner. It’s compatible with both contact and NFC interfaces for flexible use. This combination of SeedSigner and smartcards opens up powerful possibilities for bitcoin cold storage. Imagine signing transactions and verifying PSBTs offline using your Satochip or the included DIY card, all while maintaining air-gapped security. You can easily sign messages, export xpubs for single or multisig configurations, and integrate with address explorers for better oversight. With Seedkeeper from SatoChip, managing seeds, wallet descriptors, and secrets becomes straightforward—supporting Electrum-style seeds, split passphrases, and even encrypted QR codes for added layers of protection. Whether you’re building a robust multisig setup or simply want more options for your offline storage, the Smartcard Hat Kit adds many interesting possibilites to and already highly capable device.

Smartcard Hat for SeedSigner

Extend the capabilities of your Seedsigner with this smartcard kit.
The Smartcard Hat in this Kit allows your SeedSigner to interact directly with Satochip products and DIY Smartcards.

The kit contains:

  • 1 x dual slots Smartcard Hat for your existing Seedsigner
  • 1 x black 3D printed case for extended SeedSigner (Modified Open Pill)
  • 1 x DIY smartcard

Note: The smartcard hat slots between the Raspberry Pi Zero and the Display hat.

Ready to start?

Unlock the full potential of your SeedSigner with this complete kit, which includes:

  • 1 × dual-slot smartcard hat with soldered stacking header
  • 1 × black 3D-printed protective case
  • 1 × compatible DIY smartcard

 

This kit enhances your SeedSigner with a plug-and-play smartcard hat that provides a CCID/PCSC-compatible interface with two slots—ID-1 (standard bank card size) and ID-000 (SIM card size)—plus a convenient USB-C port for powering your device. To keep everything safe, it comes with a matte-black case designed by CryptoGuide precisely crafted to protect your SeedSigner while using the smartcard hat. Completing the package, the included JavaCard smartcard is fully compatible with both contact and NFC interfaces, shipped unlocked with default keys so you can easily load your favorite applets directly from your SeedSigner.

With this setup, you can:

  • Sign transactions and verify PSBTs directly with your Satochip or DIY Card;
  • Sign messages and export xpubs (for both single and multisig setups) with full address explorer integration;
  • Manage all your seeds, wallet descriptors and secrets with Seedkeeper (by SatoChip)
  • Use Seedkeeper (by SatoChip) with Electrum seeds, including support for split passphrases and encrypted QR codes.

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