It's called Death Wish. It claims 200% more caffeine than normal coffee, and it costs $20 a pound.
Source: deathwishcoffee.com
Here are the average caffeine counts for Starbucks drinks, according to energyfiend.com:
Via: energyfiend.com
According to Death Wish, a cup of their stuff would be 200% stronger than the 180 mg in a small cup of Starbucks.
Source: facebook.com
So it's strong (which is VERY VERY important, for sure), but how does it taste?!
Source: facebook.com