i have 2 of those kfa2 1070 ex overclocked them to +190 core and +740 mem clock and 85% powerlimit getting around 480 to 500 soll in zec and about 30,5 mhs ethereum in dualmining with sia dcri set to 60 no impact on ethash... its a good card for the price its 100€ cheaper here than a 1070 from msi gigabyte and so on ... only contra is 1 8 pin + 1 6pin power connector so if you build a rig be sure to have enough pcie power connectors i also so have some gigabyte 7x 1070 2 fan oc version this card has only 1 8 pin connector and does almost the same hashrate than kfa2 1070 ex with same overclocking... sorry 4 bad english