Yes use baikalminer.com it's offical site for these miners and you get best prices there. Sadly they are sold out now.
hum!!!here i can read who official site is
www.baikalminer.com
https://bitcointalk.org/index.php?topic=1809541.msg18024388#msg18024388
damn!!!
what a mess
Its the same page the one is the old adress and the other the new !!!!