Coldcard Mk4 hardware wallet

Coldcard Mk4

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Release year: 2022
Dimensions: 86 x 50 x 7.5 mm
Weight: 30.0g / 1 oz
Certification level: CC EAL6+
Chip name: ST33K1M5
Secure element: ✅
Open source: ❌

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