I am running 4 s-3's at 2.4 cents they earn around .014btc a day the power costs me about 15 usd a month.
you can put an s7 in the place of the 4 * s3!
Bitcoin Difficulty: 56,957,648,455
Estimated Next Difficulty: 59,938,071,210 (+5.23%)
Adjust time: After 389 Blocks, About 2.5 days
Hashrate(?): 417,794,711 GH/s
the higher we go in hashrate, the higher the variance the swings will be
maybe in the future we will have even 5% swing from one day to another
....