Update/upgrade Antminer s5, boards with  BitFury chips

We would like to offer boards with  BitFury chips  16nm  to replace / upgrade Antminer S5

Specifications
Algorithm: SHA-256
Hashrate: 5 Th / s
Power Consumption: 550Watt
Power Efficiency: 0.11 w / ghash

Shipping out date: starting may 2016
Cost: reference to cost of terahash bitmain S7 minus 5%.