Bitmain Antminer S9i 14 TH/s w/ BITMAIN Power Supply & power cord Bitcoin Miner. The item “Bitmain Antminer S9i 14 TH/s with BITMAIN Power Supply & Power Cord Bitcoin Miner” is in sale since Tuesday, November 9, 2021. This item is in the category “Coins & Paper Money\Stocks & Bonds, Scripophily\Mining”. The seller is “bit86-6″ and is located in St Catharines, Ontario. This item can be shipped worldwide.