Coldcard · Hardware Wallet
$147.99 USD
Coldcard Mk4 is the gold standard for Bitcoin security. Dual Secure Elements from two different vendors (Microchip ATECC608 + Maxim DS28C36B) — both must be compromised to breach your keys. Air-gap operation via microSD: never needs to touch a computer. NFC tap for PushTX, sliding cover protects the screen. Anti-phishing words, Duress PIN, Brick Me PIN, and BIP39 passphrase support. Full PSBT and multi-sig. Open-source firmware, made in Canada.
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Tax calculated at checkout · Factory-sealed · Free US shipping · 30-day returns
If you want altcoin menus look elsewhere. MicroSD air-gap + PSBT is why I bought it. Steeper learning curve than Ledger/Trezor — read the docs. Made in Canada sticker still on mine.
Weirdly satisfying after years of two-button Nanos. Multi-sig and coin control are why power users push this. Seed XOR backup is next. Order was clean, no weird repackaging.
Spent an evening with the docs before I moved real funds. That's a feature not a bug for me. Plastic shell looks cheap next to a Stax — security model is why it's here.
Mk4 replaced an older Mk3. Same vibe, better internals. If you're all-in on Bitcoin this is boring in the best way. Store shipped with tracking, seals looked original.