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Bitcoin Only

Coldcard Mk 4 Hardware Wallet

Coldcard Mk 4 Hardware Wallet

Regular price 5,100.00 ZAR
Regular price Sale price 5,100.00 ZAR
Sale Sold out
Shipping calculated at checkout.

Secure your Bitcoin and sleep like a baby

COLDCARD is the world’s most trusted and secure Bitcoin Signing Device (a.k.a Bitcoin hardware wallet).

  • Bitcoin Only
  • Verifiable Source Code
  • Easy-to-use
  • Ultra-Secure

The Coldcard Mk4 is the on cutting edge of Bitcoin security, featuring:

Dual Secure Element

It provides the best Physical Security. Your seed words are stored in specialized chips, designed solely to securely store secrets. Now dual-vendor!

Verifiable Source Code

All of the Coldcard code is viewable, editable, and verifiable. You can compile it yourself.

True Air-gap

Only signing device (hardware wallet) with option to avoid ever being connected to a computer, for its full life cycle: from seed generation, to transaction signing. Uses PSBT (BIP174) natively!

What’s new in Mk4:

  • USB-C Connector
  • Unlimited Memory, no Bitcoin Transaction size restrictions
  • NFC Tap for all data types, PSBT, Address, etc...
  • Sliding Cover protects screen
  • Even more security: Dual SE (Secure Elements)
    • Extensive duress PIN features
    • Multi-vendor solution
  • USB Virtual Disk mode

What's included:

1x Coldcard Mk4 signing device

1x Power only magnetic cable (USB-C)

1x Micro SD card

Why ColdCard:

This hardware wallet is Bitcoin only, which sets it apart from most other crypto hardware wallets, such as the Ledger hardware wallet and Trezor hardware wallet, which cater to thousands of altcoins. Focusing on Bitcoin only allows the engineers who work on the ColdCard to spend all their time creating security solutions for Bitcoin only, resulting in a more robust security model. 

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