Best for
High-value cold storage, multi-signature Bitcoin quorums, and power users demanding complete air-gap isolation.
Coinkite
Coldcard Q
Air-gapped flagship Bitcoin hardware wallet with full QWERTY keyboard, integrated optical QR scanner, and dual secure elements.
From $239.00
USD is authoritative · crypto amount locks at invoice creation
Verified selection · 12-month warranty
25 available
Why we selected it
Factory sealed in tamper-evident serialized bag. MicroPython source code published on GitHub.
Privacy considerations
True air-gap design. No Bluetooth, no Wi-Fi, no NFC. Zero wireless radio attack surface.
Shipping & warranty
Includes Coldcard Q unit, battery sled, and authentic serialized security bag. Requires 3x AAA batteries or USB-C power.
Specifications
CameraIntegrated optical camera with built-in LED illuminator for QR signing
Display3.2-inch 320x240 high-contrast color LCD screen
StorageDual standard MicroSD slots with push-push sockets
Firmware100% verifiable open-source MicroPython firmware
InterfaceFull QWERTY tactile keypad with navigation d-pad
Air-gap Mode100% Air-gapped via MicroSD PSBT or Optical Animated QR code
Power OptionsUSB-C power-only (data pins grounded) or 3x AAA battery pack
Secure ElementsDual hardware secure elements (Microchip ATECC608A + Maxim DS28C36B)
Physical SecurityLaser-etched tamper-evident packaging and epoxy encapsulated chips
Supporting documents
No additional documents are required for this product.
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