Designed for heavy workloads and multi-user NAS environments, the 2TB IronWolf 125 SATA III 2.5" Internal SSD from Seagate delivers powerhouse performance with 24/7, always-on capabilities. Compatible with Windows 10, 8.1, and Unix, this 2TB SSD has been equipped with a SATA III 6 Gb/s interface, a 2.5" / 7mm form factor, sustained sequential read speeds of up to 560 MB/s, and sustained sequential write speeds of up to 540 MB/s. This IronWolf 125 SSD also has an MTBF rating of 1.8 million hours, 1 in 1017 non-recoverable read errors per bits read, a Total Bytes Written (TBW) of up to 2800TB, and uses 3D TLC NAND flash memory.