I purchased my T15 from Amazon last Thursday. It arrived Monday.
It is basically what the specs are..
I have it powered from 220V
The power supply provides 20 VDC on open busswork. This could be extremely dangerous.
First issue the power up is almost always 20 minutes. Although during this time it is up and running at full wattage.
THERE is NO Firmware to download from Bitmain. I really wanted to get started to de-complie it.
The GUI is almost identical to all the past. Only 60 chips per blade.
Lower power mode is 20.2 TH/s at 1100 watts.
Normal is 23 Th/s at 1400 watts.