I purchased these two amazing products recently and I absolutely love them both. Coldcard Q and Coldcard Mk4 I am a big fan now. I do like the Coldcard Q the best, I think it’s so amazing. I believe the Coldcard is the absolute very best way to safely create and store your bitcoin private keys. I think of it as an offline vault for my bitcoin private keys. I like using NFC, QR and MicroSD to communicate with my device and always keep my Coldcard storage devices offline (not connected to my computer or the internet). I will be updating this post as I have more to say about these great products.
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Coldcard Q, Coldcard Mk4 and More
Regards,
Bitcoin Kid