Coinkite Coldcard MK3

Bitcoin
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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.

Key specifications

Supported cryptocurrencies
Bitcoin
Software
Native
Crypto Wallet functions
Backup function
Hardware interface
USB
Item number
14894549

General information

Manufacturer
Coinkite
Category
Crypto wallets
Release date
24.2.2021

Crypto wallet properties

Supported cryptocurrencies
Bitcoin
Software
Native
Hardware interface
USB
Crypto Wallet functions
Backup function

Voluntary climate contribution

CO₂-Emission
Climate contribution

Package dimensions

Length
9.80 cm
Width
1 cm
Height
19.30 cm
Weight
32 g

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