What a nice way to advertise your services, you mentioned all the pros of these 19 series which I would you second you on them, but why not tell them that there are a dozen people complaining about the PSUs on these gears? gosh, seems like bitmain doesn't want to make a perfect mining gear again, people always have to worry about a certain part failing when they have to pay 10k++ for mining gear, isn't it sad?