Buyer beware, you should read this thread before getting in so you know what to expect:
https://litecointalk.org/index.php?topic=13314.165Largely untested, varying results, non-standard interfaces typically requiring improvised power connections. These things wouldn't deter me or other tech-minded folks. BUT, the price would. Especially since they are current available for much less through other sources.
Also, not sure about the specs listed in the subject line. Should be about 300khs scrypt and 10ghs sha-256. What's interesting is that these are supposed to be able to do both at the same time with just about 80watts consumed (8W scrypt and the rest from sha). Pretty cool but still pricey.
Momma told me: better shop around.