Inside The New COLDCARD Mk4 Bitcoin Hardware Wallet Today

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Bitcoin Magazine obtained exclusive access to details about the upcoming COLDCARD Mk4, the new version of Canada-based Coinkite’s Bitcoin hardware wallet that improves upon the popular COLDCARD Mk3.

The main features of the new model include a USB-C connector, no restrictions on Bitcoin transaction size, increased security with an extra secure element, NFC integration, a slide cover, a USB virtual disk mode, and an extensive “Trick PIN” optionality.

The front and back of Coinkite's upcoming hardware wallet, the COLDCARD Mk4. Photo courtesy of Coinkite.

The front and back of Coinkite’s upcoming hardware wallet, the COLDCARD Mk4. Photo courtesy of Coinkite.

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