World's 1st and only Real Physical Bitcoin
Opendime is 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 to spend online. Trust no one.
An Open & Ultra-secure Hardware Wallet!
Coldcard is a Bitcoin hardware wallet, it signs transactions to keep the private keys offline.
Our second Bitcoin Data Display
Now affordable and using Eink digits! Track #bitcoin price, see blocks as they are published and connect Opendimes to display balance, fiat value, and deposit QR.
A better bitcoin backup metal plate!
Single plate design. Quality steel cut and etched in Canada. Etch marks chemically colored in black for better legibility, and more!
A no data, 9volt Battery To USB Adapter
Level up on your USB P.P.E. and power your Coldcard or other low power USB devices from a standard 9-volt battery without any USB data concerns. Makes a great gift for the cypherpunk in your life.
An electro-mechanical display data visualizer
In celebration of ten years of Bitcoin we created this clock. Display block data, track prices from different exchanges and follow Electrum servers on your favourite chain.