Product details
Coldcard Hardware Wallet: Only Bitcoin, open-source, easy to use, ultra-secure, loved by cypherpunks. Physical security. Your seed words are stored in a special chip designed to securely hold secrets. The entire code is open-source, and you can compile it yourself. The only hardware wallet with the option to never be connected to a computer for full operation: from seed generation to transaction signing. Natively uses PSBT (BIP174). The large numeric keypad makes PIN entry simple and fast. Bright 128x64 pixel OLED display. Shows all important details of your transactions. Lovingly soldered in Toronto, Canada. Secure supply chain verified with: tamper-proof numbered bag, with bag number recorded on the device. Simple packaging, minimalist design, no fancy boxes, no unnecessary cables. Genuine crypto security chip. Your private key is stored in a dedicated security chip, not in the main microcontroller's flash memory. MicroSD card slot for backup and data storage. This enables true offline signing by transferring unsigned/signed transactions via Sneakernet.
Supported cryptocurrencies | Bitcoin |
Software | Native |
Crypto Wallet functions | Backup function |
Hardware interface | USB |
Item number | 14894549 |
Manufacturer | Coinkite |
Category | Crypto wallets |
Release date | 24.2.2021 |
Supported cryptocurrencies | Bitcoin |
Software | Native |
Hardware interface | USB |
Crypto Wallet functions | Backup function |
CO₂-Emission | |
Climate contribution |
Length | 9.80 cm |
Width | 1 cm |
Height | 19.30 cm |
Weight | 32 g |