Sequential Read/Write performance reaching up to 560/530 MB/s provides best in class performance via the SATA interface. Accelerated read performance up to 13% faster than 860 QVO for added benefits for everyday computing. 870 QVO provides adequate amount of TBW for daily use, equivalent to 3 bit MLC SSDs and offers up to 1. Expanded capacity up to 4TB for client SSD in 2.5? 7mm form factor. 720 TBW for 2TB model and 1, 440 TBW for 4TB model. whichever comes first..