Samsung 850 EVO V-NAND 1TB Solid State Drive mSATA (MZ-M5E1T0) Storage Capacity: 1TB. Form Factor: MSATA. Interface: SATA 6 Gb/s Interface, compatible with SATA 3 Gb/s & SATA 1.5 Gb/s interface. Sequential Read: Up to 540 MB/sec. Sequential Write: Up to 520 MB/sec.