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 2. Power consumption figures will vary with your PSU's efficiency, the ambient operating temperature and the accuracy of the power meter.

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 one hashing board

Brand BLESSINGHASH Hashing Speed 1200MH/s Scrypt Mining Algorithm Scrypt Mining Power Consumption 1000 Watts Chip Minion2 ASIC Chip Scrypt Miner Data Interface USB 3.0 , USB 2.0 and Ethernet 100 Mbps Warranty 10 Years

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)