Whilst I can not comment on this vendor's authenticity, I must point out that every ASIC / Bitcoin miner advertised on Silk Road has been a scam. I would strongly advise potential buyers not to purchase this listing, and if it is legitimate, would strongly advise the vendor to advertise it elsewhere due to the fact that LE can link it back to their real identity with a simple check with Butterfly Labs as to the original details supplied for delivery. Libertas