is this miner better than Antminer S9? I mean quality price what is your opinion??
Simple question but complex answer.
___________________________________________________________________________
If you buy from bitmain the next s-9 comes in Nov
if you buy from canaan the next 741 comes in Sept. so time delivered avalon 741 wins
____________________________________________________________________________
s-9 = 1350 for 13500 hash
741 = 850 for 7.5000 hash plus add 100 for rasp pi but it does many avalon's
so $ per hash is close slight edge for bitmain
____________________________________________________________________________
power cost
s-9 say .11 or .12 watts a gh
741 say .15 or .16 watts a gh
bitmain is a clear cut winner
_________________________________________________________________________
maintainence
the s-9 gets dusty big time and must be cleaned of dust every 90 to 120 days
the avalon 741 dust not get dusty and you can wait 9 months to clean it
________________________________________________________________________
gear dying
the s-9's die off 1 of 10 each year is common
the avalon 741's don't die much 1 of 20 each year seems rare.
_____________________________________________________________________
as a long term owner of both with a dusty place to mine but cheap power I favor the avalon 741 but I will continue to grow and get some of each.