try everyday at bitmain.com, the manufacturer.
you have to pre-order for the next batch (waiting time about 1 month).
or at alibaba.com (many resellers who buy by batches and resell at higher prices, I think), but more expensive (twice the price).
Hey,
Thank you for your answer...
Every day i go on bitmain... but it's writed as "sold out"...
An on alibaba, it seems to be Fake antminer S9...
Do you knwo / have a good seller on alibaba ?