Parameters of ANTMINER V9 No. Parameters Value 1 Product model V9 2 Hash chip type BM1580 3 Total quantity of hash chips 135 PCS 4 Total quantity of hash boards 3 PCS 5 Total hash rate 4TH ±5% 6 DC voltage input 11.60~13.00 V 7 DC current input @12V DC 79.59 A +10% 8 DC Power @12V DC input 955 W +10% 9 220VAC Power @25? ,93% conversion efficiency of APW3 1027 W +10% 10 220VAC Power efficiency @25?,93% conversion efficiency of APW3 253mJ/GH+10% 11 Weight?without package? 3.05 kg 12 Operation temperature 0-40 ? 13 Storage temperature -40-85 ? 14 Operation humidity 5%RH-95%RH, prevent condensation 15 Noise 76 dB 16 Networking connection mode Ethernet Cable 17 Power connection mode All three PCI-E ports are required to power the board. You can use one PSU to power multiple boards, but do not attempt to power one board with two PSUs.We suggest to prevent the control board to be powered up before hash boards be powered up. 18 Size(Length*Width*Hight,without package) 301mm*123mm*155mm