The BitMain S4 were release in Sept 2014. These off field unit were keep in cool, clean data center. Units where are updated with the latest firmware and fully tested at a hash Rate of 2,000GH/s.
The AntMiner S4 is the fourth generation Bitcoin mining rig by Bitmain. It uses the state of the art BM1382 chip powered by the 28nm tech process with ultra-low power consumption.The S4 are among the most powerful and power efficient ASIC Miner on the market today.
• Chip Operating Voltage: 0.72V
• Chip Quantity per unit: 160
• Hash Rate: 2,000GH/s guaranteed
• Power Efficiency: 0.69Watt/GH/s at the wall
• Over clocking: About 10%, but not guaranteed
• 3U Rack 432mm*442mm*133mm
• PSU inside: 1400W, 80PLUS gold. Power line not included. You may look for one line with no less than 16A in your local market
• Temperature: 40-50 degree Celsius tested in the mining farm
• Fan Speed: 3900RPM
• Ethernet connection, Stand alone
• Certificate Compliance: FCC/CE
All Antminer orders will have up to 5 days handling time to ship after order has been confirmed