Re: 16 Bitfury h-cards+1m-board+1pi+1PSU=400GH min guarranteed starts at 25BTC
Whoa, you want $17K for this?!!? So you're essentially trying to recover your Aug kit cost 3 months down the line. Nice try! 
This kit will mine 12.37 btc per month at the current difficulty; and this is assuming the kit can be overclocked to reach 500 GH. At 400 bare minimum GH it will produce 9.9 btc. So I'd say if I made an offer it would be in that range.
This kit will mine 12.37 btc per month at the current difficulty; and this is assuming the kit can be overclocked to reach 500 GH. At 400 bare minimum GH it will produce 9.9 btc. So I'd say if I made an offer it would be in that range.
Absolutely
I wanted to ad that each chip reached up 40GH with basic settings, and at top efficiency we've reached over 800gh/s. I let you imagine with what could be done with overclocking and manual tuning. When I announce 400 gh I talk about manufacture guarranteed rate. Real rates are much higher.
Here are examples of average work, without tuning up.
Also you have to take into account the very low energy (-/+ 256 w)
http://i.imgur.com/poIiQhZ.png
http://i.imgur.com/tMXvqc7.png
