Specifications: 1. Hash rate: 15 GH/s (Variation of ±5% is expected) 2. Hashing algorithm: X11 3. Power consumption: 1200W (at the wall, with Bitmain’s APW3 PSU, 93% efficiency, 25°C ambient temp). 4. Power Efficiency: 1.6 J/MH + 10% (at the wall, with APW3 93% efficiency, 25°C ambient temp) 5. Rated Voltage: 11.60 ~13.00V 6. Dimensions of the miner: 320*130*190mm 7. Operating Temperature: 0 °C to 40 °C 8. Network Connection: Ethernet

AntminerL3+ Specifications: Hash Rate 504MH/s. A variation of +/- 5% is expected. Power Consumption 800W +10% (at the wall, with Bitmain's APW3 PSU, 93% efficiency, 25°C ambient temperature) Power Efficiency 1.6J/MH +10% (at the wall, with Bitmain's APW3 PSU, 93% efficiency, 25°C ambient temperature) DC Voltage Input 11.60 ~ 13.00V Chip Type BM1485 ASIC chip Chip quantity per unit 288 chips on four hashing boards, 72 chips on

S9 Specifications: 1. Hash Rate: 12.93TH/s ±5% 2. Power Consumption: 1275W + 7% (at the wall, with APW3 ,93% efficiency, 25C ambient temp) 3. Power Efficiency: 0.098 J/GH + 7%(at the wall, with APW3 93% efficiency, 25°C ambient temp) 4. Rated Voltage: 11.60 ~13.00V 5. Chip quantity per unit: 189x BM1387 6. Dimensions: 350mm(L)*135mm(W)*158mm(H) 7. Cooling: 2x 12038 fan 8. Operating Temperature: 0 °C to 40 °C

Brand MinersLab Hashing Speed 50TH/s Hashing Algorithm SHA-256 Embedded PSU 2200 Watts Estimate power consumption 0.045 Watt per 1GH/s Chip 10nm HPP (High Performance Process) Control unit Embedded, with pre-installed OS and mining software Data Interface USB 3.0, Ethernet 100 Mbps Wireless connection Wi-Fi (802.11a, 802.11b/g/n, 802.11ac) Warranty 5-year