Excited to announce the Early Bird reservation of COLDCARD Mk4, get $40 off as many units as you’d like.

Some of the improvements include:

  • USB-C Connector
  • Unlimited Memory, no Bitcoin Transaction size restrictions
  • NFC Tap for all data types, PSBT, Address, etc…
  • New 2x secure elements design (multi vendor)
  • New plastic
  • Faster Processor … and much more, details coming!

Shipping will be handled later when the device is ready for you.