TK21 Coldcard Mk3 Case + Accessories

July 2020

I designed a modular clip-on case for the Coldcard Mk3 that featured an integrated rail system to accept different accessories such as a case clamp and stand.

There was a ton of interest for this product on Twitter after I tweeted some photos but I didn’t want to go through the logistics of fulfilling orders.

Instead, I hit up Rick from Cryptocloaks and we worked out a profit split deal where I basically licensed out the design to his company.

TK21 Mk3 Case – File Factory Version

July 2020

I created a free version of the case for Cryptocloak’s File Factory that doesn’t include the label area and the cool design on the back.