World’s First Modular Bitcoin Mining Machine ‘Proto Rig’ Created by Twitter Founder Jack Dorsey Delivers 1.5× More Power per Rack Foot Than Other Hardware https://t.co/YRewrrbCX5 ...

First Look @Jack Dorsey’s Bitcoin Mining Machinehttps://t.co/rkiwzY3VSW ...

First Look @Jack Dorsey’s Bitcoin Mining Machine https://t.co/ZTkHiZnvdG ...