Thanks for the cool review!
Antminer S9 is a Bitcoin (SHA-256) ASIC miner using 14nm ASIC chip technology, manufactured by Bitmain Technologies (headquarters in Beijing, China).
I believe you meant to say
16 nm here.
I have similar experiences with recent S9 batch, gives more Th/s than advertised and uses more power (~1400 W).
Yes, whoops.
I fixed the opening post.
Thanks for the feedback you guys.