Antminer S9 For Sale @ Discount Only $499 | Antminer-s9.com
There are also many miners like Avalon6 which has advertising capacity 3.5TH/s and energy efficiency o.29 W/GH and its weight is 9.5. Another machine named as Hashfast sierra that hash rate is 1.2TH/s. KnCMiner Neptune is also working for bitcoin mining. The hash speed of it is 3TH/s.