Coldcard Bitcoin Hardware Wallet

The model sold by the seller was the MK1 model, which is old and has design flaws. Make sure you are buying the MK2 to MK3 and you are better off buying direct from Coinkite direct.

The one area that I can recommend with this is to use a cell phone battery pack to power this, that ensures that the device never touches anything on the internet (and it makes the buttons work better). Otherwise great product with good support.

The item arrived with no visible damage. When trying to enter a PIN the key pad would ether not respond at all or would enter uncommanded digits. Item is inoperable.

Only purchase the Cold card wallet from the official manufacturer through its official website (coinkite.com) to avoid potential theft. Buying from third parties (especially imposters) risks your assets.

Fake don't buy

If you don't buy direct from the manufacturer you introduce one or more completely unknown attack vectors - you would have to be nuts to do it at any cost savings level - it puts all funds you ever store on the device at risk!

Becareful! Don't buy Coldcard from Amazon. You don't want to lose your valuable bitcoin for buying fake coldcard. Go str8 to the source (coinkite).