- Help Center
- Hardware devices
- Coldcard
Where to purchase a Coldcard device
Coldcard devices, including the Mk3 and Mk4, offer "airgapped" signing via micro SD card, and can be purchased from Coinkite here:
https://store.coinkite.com/store/coldcard
See our article Where to buy your hardware device to find out where to purchase more of our supported hardware devices.