Coldcard Mk4

Cold Storage

The COLDCARD Mk4 is a Bitcoin-only hardware wallet from Coinkite designed for security-first users and advanced Bitcoin operators. It features dual secure elements (ATECC608B + SE050), air-gapped signing via MicroSD card or QR codes, full PSBT support, and a physical numeric keypad — no USB data connection required during signing. The Mk4 is the standard recommendation for technically proficient Bitcoiners who prioritize security over ease of use, and it supports multisig and custom spending policies.

Details

Nfc: Yes
Usb: Yes
Type: hardware_wallet
Price: $149
Battery: No
Interface: USB-C + NFC (TAPSIGNER)
Price Usd: 157.94
Air Gapped: No
Device Type: hardware_wallet
Form Factor: Compact device
Open Source: Yes
Screen Type: OLED
Bitcoin Only: Yes
Connectivity: USB-C, MicroSD (air-gapped)
Manufacturer: Coinkite (Canada)
Release Year: 2022
Security Chip: Dual secure elements
Secure Element: Yes

Links

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