hello
i have 5 blackarrow mining machines from the past, they are all the same
the model is :
Black Arrow Prospero X-3 and they are rack mounted with Minion chips
best to look the model up if unfamiliar
the specs say any where between 1200gh/s and 2000gh/s
also these can be over clocked
i have not used these and the previous has not either as far i know
they are a little bit cosmetically damaged though
i pugged one in and it fired up fine although did not try hashing
also have some more chips from the same period (slightly newer)
located in the south of england, would be happy to deliver to some locations in the south
surrey, sussex kent and london then they could be tested properly
please send pm if you need my number or post questions
prefer offer on the lot