People often ask me options and prices for power supplies to farm 7 x RX470 / 480 - for these tasks can offer four options:
 
2000W Power of GPU-7 card type RX470 / 480 (6 + 2 connectors) are not noisy - 205usd



Power supply 2250W GPU-6 RX470 card type / 480 (6 + 2 connectors) (low noise) - 190usd



Power supply 2360W GPU-7 card type RX470 / 480 (6 + 2 connectors), the average noise - 210usd



Power supply 2450W GPU-7 card type RX470 / 480 (6 + 2 sockets) noise below average - 205usd



Or here such variants units directly under the two farms (pictured Power supplys at two farms of six cards):

Power supply 2450W under 2 GPU farm 6 RX470 card type / 480 (6 + 2 sockets) noise above average - 260usd:





Power supply 2700W under 2 GPU farm 6 RX470 card type / 480 (6 + 2 sockets) noise above average - 315usd:





Power supply 2880W under 2 GPU farm 6 RX470 card type / 480 (6 + 2 connectors) noisy - 305usd:





Power supply 2980W under 2 GPU farm 6 RX470 card type / 480 (6 + 2 connectors) noisy - 315usd: