DAYUN Z1 PRO use same chip 28nm as same as Dayun Zig Z1 and Z1+
But I own Zig Z1 in sept 2018 .... No more support from Nov 2018 to fix unstable of miner and Hashrast not as advertise ... Hashrate is 6.3-6.4 GH/s at 875MHz 1180W power consumption.....

If you want to buy anything from Dayun company ... Please stay away It is unresponsible company support Their miner only 3 months , not fix problems ,Bad Aftersale. and Research and sell from old technology decrease power consumtion ....Boom "" DAYUN Z1 PRO "" new product HaHa