Lenovo 4XB7A13635 Solid State Drive, Capacity 960 GB, Standard 256-bit, Drive Interface SATA/600, Maximum Read Transfer Rate 560 MB/s, Write 510 MB/s, Random 4KB Read 96000IOPS, Write 51000IOPS, Endurance (TBW) 6144 TB, Power 2.70 W. The Intel S4610 Mainstream SATA solid-state drives (SSDs) for Lenovo servers are advanced data center SSDs optimized for mixed read-write performance, endurance and strong data protection.