Mk4

COLDCARD Mk4's new features and specs

• Size: 88 x 52 x 10 mm (cover on)
• Size: 86 x 50 x 7.5 mm (cover off)
• Weight: approximately 30 grams
• Power: 50mA at 5 volts
• Connectors: USB-C and MicroSD slot
• Unofficial Volumetric 3D models: Main unit: STL, Main unit: STEP, Sleeve: STL, Sleeve: STEP

Mk3

• Size: 88 x 51 x 9 mm
• Weight: approximately 30 grams
• Power: 40mA at 5 volts
• Connectors: MicroUSB and MicroSD slot
• Unofficial Volumetric 3D model [STP] by @TiKawamoto

Obsolete Versions

• Mk2 (had less memory than Mk3) circa 2019
• Mk1 (had touch keypad) circa 2018