Hi everyone , iwould like to know if someone already buy an asic dayun zig z1+ on asicminermarket.com  (https://asicminermarket.com/product/28nm-lyra2rev2-asic-miner-dayun-zig-z1-ship-now/)  they show a price 1000$ below the other manufacturer at 4200$ i send them an email to know why and they send me a picture of their stock (https://drive.google.com/file/d/1FzQUpQKrPY_rZO6whb6nA9mcjoNF0QFI/view?usp=sharing) ,are they legit why this difference price?
Thx for your reply.