zcash mining difficulty spiked today at an all time high. But now is back down low. Looks like a lot of Z11s were delivered or else somebody in China is testing a lot of them before shipment.
I also got hit with a $2127.01 charge from Fedex for the Trump tax on 4 units.

So high the tariff was . i paid no tariff for my 6 z11s as my agent in China declared just 95usd per unit for me. 6*95=570usd only, it's really good.
U can also ask my agent in China to help u next time, they are miner reseller in China.
Below is their contact information:
Shenzhen rumax technology limited
contact: Grace zhou
Email:
gracezhou.rumax@gmail.comWhatsapp:+8617875427757