Miner Machine Antminer S9 14TH/s Asic miner Come with 2 units Power Supply 1.Power consumption figures will vary with your PSU's efficiency, the ambient operating temperature and the accuracy of the power meter. 2. Hash Rate: 14TH/s±5% 3. Most Power Efficient Miner in Existence: 93.12 J/TH 4. There are 3 PCI-e connectors for +12V DC input on each hashing board 5. All 3 need to be connected to the PSU for the hash board to operate. Do not connect more than one PSU to the same hashing board! 6. Please note: Antminer S9J this model machine usually require 220V-240V voltage for Running, But Here this link we offer 2 units power supply to support miner work on 110V if you don't have 220V voltage enviroment 7. Please note: this model machine is refurbished one, really like new one