Fortunately the device is not that expensive. 1 USB unit with 5 chips is $133 and the controller is $66 so the total cost of a 20 piece system is ~$2700 (¥ 16398).
The listing says 10x. Are we sure its only one unit?
Power: 60W for one , 600W for 10pcs
rated speed :80G BTC + 3M LTC
Can mine sha256 , scrypt coin
B mode , L mode , B&L mode changeble
GC3355 chipset
10xUSB bitcoin/litecoin miner
1x controller
each device, i read here, make in double mode: 8Gh/sha and 300Kh/scrypt.
in the first post, there are specifications about hashpower of any chip.
any device has 5 cips (there is the pic about that)
10 devices costs 4,369.00 = 426.90$ each device.