COLDPOWER

9volt Battery To USB Adapter

Buy COLDPOWER

“When you link up to another computer, you’re linking up to every computer that that computer has ever linked up to.” - Dennis Miller

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. (5volts, 500mA max current)

Like a "USB Condom", but self powered!

Watch the talk: USB Bad, Sneakernet Good - Bitcoin Security 🔗