HGST SS300 enterprise SSDs store up to 7.68 TB
 

Everybody loves the high performance of NVMe SSDs, but the fact remains that packing a whole bunch of them into a server can be problematic. CPUs only have so many PCIe lanes to go around, after all. The SAS-3 interface isn't going anywhere for a while yet, and HGST's Ultrastar SS330 series SSDs makes good use of it.

http://techreport.com/news/31913/hgs...-up-to-7-68-tb