For one special bundle price, you get:

  1 x Coldcard Mk3
  1 x Industrial MicroSD
  1 x 3-Pack (v4)

For one special bundle price, you get:

  1 x Coldcard Mk3
  2 x Industrial MicroSD

For one special bundle price, you get:

  3 x Coldcard Mk3

For one special bundle price, you get:

  3 x Coldcard Mk3
  6 x Industrial MicroSD
  1 x Sticker Collection

NEW! Mk3 with upgraded secure element, 2.5x more RAM for more complex transactions, additional side-channel defenses, and much more!
Limited First Batch
Learn more here.

NEW v4! Fourth generation of the Opendime: a small USB stick that allows you to spend Bitcoin like a dollar bill. Pass it along multiple times. Connect to any USB to check balance. Unseal anytime. Trust no one.

Power your Opendime or Coldcard from a standard 9-volt battery.
Adaptor only. Cable and battery not included.

Industrial Grade MicroSD for secure Coldcard backups. True SLC design w/ wear-leveling & block mgmt. Environmental tested (bend / torque / salt spray / solar radiation) and harsh temperatures: -40°C to +85°C.
Picture for illustration only.

For one special bundle price, you get:

  5 x Coldcard Mk3
  10 x Industrial MicroSD
  1 x 3-Pack (v4)
  1 x Sticker Collection

An electro-mechanical clock and price ticker designed for Bitcoin. Track prices from different exchanges, follow Electrum servers on your favourite chain. Learn more here

Includes: 2x wireless remotes, 1x Coldcard, 3x Opendimes, Stickers and Free Shipping.

Velcro Vinyl Patch: Coinkite Honey Badger (2 x 3 inches)
Hat not included

Propaganda for the outside of your head.

Black, one-size, 5-panel "trucker-style" cap.

Propaganda for the outside of your head. "Don't Trust Verify" on the back,

Dark Grey, one-size, cap.

Propaganda for the outside of your head.

Black, one-size, 5-panel "trucker-style" cap.

All the stickers!

You can't put Bitcoin in it... but it does hodl your coffee!

White, 11oz.

You can't put Bitcoin in it... but it does hodl your coffee!

White, 11oz.

You can't put Bitcoin in it... but it does hodl your coffee!

White, 11oz.

Participate in the Proof Of Keys every Jan 3rd and Run on your Satoshis, let's make it a tradition

Check out the #ProofOfKeys hat

Participate in the Proof Of Keys every Jan 3rd and Run on your Satoshis, let's make it a tradition

Check out the #SatoshiRun hat