COLDCARD Q

The Coldcard Q builds on the proven security architecture of the Mk4 while introducing a number of usability enhancements and advanced tools for power users. It features a larger colour LCD screen and a full QWERTY keyboard, making long passphrase entry and menu navigation more comfortable. An integrated QR scanner and dual microSD slots support streamlined transaction scanning and file management without a computer, and powered operation can be via USB-C or common AAA batteries. With the same dual secure elements at its core, plus expanded features such as secure notes storage, co-signing support, key teleport and seed vault functionalities, the Q is positioned as Coldcard’s flagship air-gapped Bitcoin signing device for sophisticated self-custody workflows.