Introducing two powerful ASICs

Today I wanna introduce two ASICs that specially powerful in mining Zcash.

1- Innosilicon A9 zmaster

power: 620 W
hash rate: 50 kH/s
profit ratio: 2815%
power cost per day: 1.79$
return per day: 50.27$
return per month: 1507.97$
return per year: 18350$
price: 7198$
payback period: 143 days

2- Antminer Z9

power: 1150 W
hash rate: 40800 H/s
profit ratio: 1182%
power cost per day: 3.31$
return per day: 39.16$
return per month: 1174.78$
return per year: 14290$
price: 3599$
payback period: 91 days