1. Specifications of the Antminer D3 are as follows: a) Hash rate: 15 GH/s (Variation of ±5% is expected) b) Power consumption: 1200W (at the wall, with Bitmain’s APW3 PSU, 93% efficiency, 25°C ambient temp). c) Dimensions of the miner: 320*130*190mm d) Hashing algorithm:

1. Specifications of the Antminer D3 are as follows: a) Hash rate: 15 GH/s (Variation of ±5% is expected) b) Power consumption: 1200W (at the wall, with Bitmain’s APW3 PSU, 93% efficiency, 25°C ambient temp). c) Dimensions of the miner: 320*130*190mm d) Hashing algorithm:

1. Specifications of the Antminer D3 are as follows: a) Hash rate: 15 GH/s (Variation of ±5% is expected) b) Power consumption: 1200W (at the wall, with Bitmain’s APW3 PSU, 93% efficiency, 25°C ambient temp). c) Dimensions of the miner: 320*130*190mm d) Hashing algorithm: X11

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

Hash Rate 8.7TH/s. Variation of ±5% is expected Maximum Power Consumption 845W +9% (at the wall, with Bitmain’s APW5 PSU,93% efficiency, 25°C ambient temp) Power Efficiency 0.1 J/GH +9% at the wall (with Bitmain’s APW5 PSU, 93% efficiency, 25°C ambient temp) Noise 52dB (at a test distance of 1M from the air outlet and at ambient temperature of 30°C in a silent room) Frequency Automatically set Chip quantity per unit 126 chips (16nm BM1387 ASIC chip)

Algorithm : X11 / X13 / X14 / X15 / Quark / Qubit Hash Rate : 900MH/s(±10%) Input Power : ATX Power，12V Plug 6P/8P Interface : 1 x Ethernet Operation Temp : 0 ~ 40 ℃ Dimension : 300mm(L) x 123mm(W) x 123mm(H) Weight : 2550g 1. Hash Rate and Power – Giant-A900 miner 1) X11 : 900MH/s @ 217W 2) X13 : 900MH/s @ 255W 3) X14 : 900MH/s @ 263W 4) X15 : 900MH/s @ 270W 5) Quark : 900MH/s @ 132W 6) Qubit : 900MH/s @ 146W