Description
The Coldcard Mk4 is the hardware wallet that set the standard for Bitcoin security. Dual secure elements, full air-gap capability, and a decade of security-first engineering from Coinkite.
Why Coldcard Mk4?
- Dual secure elements — Microchip ATECC608 + Maxim DS28C36B
- Multiple connectivity — USB-C, NFC, MicroSD (your choice)
- True air-gap — Never connect to a computer if you don’t want to
- Bitcoin-only — No altcoin distractions or attack surface
- Open-source firmware — Verify everything
- 120 MHz CPU — Fast operations
Security Features:
- Trick PINs — Duress wallet, brick device, countdown delays
- Virtual disk mode — Drag-and-drop file transfers
- Unlimited transaction size — No PSBT restrictions
- Secure supply chain — Tamper-evident numbered bag
- Made in Canada — Lovingly soldered in Toronto
What’s Included:
- Coldcard Mk4 device
- USB-C cable
- MicroSD card
- Quick start guide
- Tamper-evident numbered bag
The choice of serious Bitcoiners since 2018.
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