GOOD USED Bitmain Antminer S9 S9I S9J R4 T9 Controlboard Guaranteed to work. Posted on January 26, 2022 Buy on eBay Price: 55.00 USD Crypto Miner: GOOD USED Bitmain Antminer S9 S9I S9J R4 T9 Controlboard Guaranteed to work. GOOD USED Bitmain Antminer S9 S9I S9J R4 T9 Controlboard Guaranteed to work.. 0/5 (0 Reviews)