sending used equipment is so fucked up. don't get me wrong, i get it. but it's still not right. BFL was doing it. avalon was doing it. now bitmain is doing it. they will all do it to us. it's such a bend over the customer racket. nowhere else would that be acceptable but they get away with it cause everybody wants to be a part of the gold rush. and to add insult to injury they only offer a 3 month warranty after they been mining with it for months.