Coldcard

About Coldcard

Coldcard is a Bitcoin-only hardware wallet built for people who want maximum control. It can be used fully air-gapped, signing transactions through a microSD card instead of a cable.

Who it is for

• Dedicated Bitcoin holders.
• Advanced users who are comfortable with extra setup.
• Anyone who wants to minimise connections to computers.

Highlights

• Bitcoin only, which keeps the software focused.
• Air-gapped signing with a microSD card.
• Many advanced options for multi-signature setups and backups.

Things to consider

• It is not designed for altcoins.
• The learning curve is steeper than beginner-oriented wallets.
• Check the official site for the current models and price.

Why use an offline wallet?

A hardware wallet keeps your private keys offline, so malware on your computer or phone cannot steal your coins.