Service or product profile
COLDCARD Q: Bitcoin hardware wallet and official sources
An advanced option only after installing fixed firmware and creating a completely new seed.
Editorially reviewed on 20 August 2026
Key information
COLDCARD Q
- Service type
- Bitcoin hardware wallet
- Manufacturer
- Coinkite Inc.
- Edition
- Bitcoin-only
- Especially suitable for
- Advanced air-gap
- A strong point
- Two secure elements, a large display, a full keyboard and several air-gap procedures.
What to watch out for
A serious seed-generation incident disclosed in July 2026; a seed from older firmware must be replaced, not merely the device updated.
Before buying or depositing a larger amount, check the current terms, exact domain and details in the official source.
Official sources and documentation
Official sources and documentation
The links show where the information comes from. They are not an independent security audit or a guarantee of future pricing.
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