Sequential Read/Write performance reaching up to 560/530 MB/s provides best in class performance via the SATA interface. Boost Capacity: The 870 Qvo Is Available In 1, 2, 4 And 8Tb. Enhanced In Every Way: With An Expanded Sata Interface Limit Of 560/530 Mb/S Sequential Speeds, The 870 Qvo Improves Random Access Speed And Sustained Performance.