HGST has refreshed their 12Gbit/s SAS series of Ultrastar SSDs with denser 20nm which has upped the read speeds though the writes do suffer somewhat.  As they are enterprise drives they have rather impressive lifespans, the 800GB is rated at 25 full drives writes/day for the length of the 5 year warranty.  They also offer encryption and erasure tools that are superior to enthusiast drives, along with a much higher price tag.  The Register also offers information on the new Ultrastar HDDs and a link to the spec sheets but as of yet we do not have any benchmarks.

"HGST has refreshed its Ultrastar enterprise SSD line, using denser 20nm NAND to replace the previous 25nm flash, doubling capacity, upping read performance but lowering write performance a tad in the process."

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