description Coldcard Mk3 Overview
The Coldcard Mk3 is a passive USB-C hardware wallet designed for secure storage of cryptocurrency private keys, utilizing a microcontroller and PIN protection to prevent unauthorized access during operation.
help Coldcard Mk3 FAQ
What is the Coldcard Mk3 used for?
The Coldcard Mk3 is a hardware wallet designed for the secure, offline storage of cryptocurrency private keys. It keeps sensitive financial data isolated from internet-connected computers to prevent hacking.
How does the Coldcard Mk3 connect to a computer?
The device features a USB-C interface but is designed to operate in a completely passive manner. This means it never exposes private keys to the host computer, ensuring the computer itself remains untrusted.
What security features does the Coldcard Mk3 utilize?
The wallet relies on a secure microcontroller and physical PIN protection to prevent unauthorized operation. Users must enter their PIN directly on the device's hardware to unlock its functions.
Who is the target audience for the Coldcard Mk3?
It is designed specifically for cryptocurrency holders who prioritize maximum security and air-gapped transaction signing. Its reliance on physical hardware buttons and offline storage makes it ideal for users holding significant digital assets.
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