Just got off the phone with customs.  They are reclassifying the tariff association from 8471.50.0150, what is on the invoice from Bitmain, to 8543.70.9960 because "ANTMINER" is on the invoice as of 8/23/2018.  This is for all carriers into the US. DHL, UPS, etc.

https://hts.usitc.gov/?query=8471.50.0150 - High Level:  Freely programmable data processing electronics - 0% extra fee
https://hts.usitc.gov/?query=8543709960 - High Level: Not freely programmable specialized mining equipment - 25% extra fee

https://rulings.cbp.gov/search?term=ANTMINER&collection=ALL&sortBy=DATE_DESC&pageSize=30&page=1

Unless Bitmain changes their invoice to not say ANTMINER, but instead calls it general purpose computer, or something else, customs is now changing the tariff association.