SanDisk Unveils 4TB SSD; 6TB and 8TB SSDs Coming Next Year SanDisk on Friday announced the Optimus Max Solid State Drive (SSD), which it claims is the industry’s first 4TB enterprise-class Storage-as-a-Service (SAS)-based SSD. The SSD is built on the 19-nanometre process technology. May 5, 2014 News